diff --git a/package-lock.json b/package-lock.json
index c964466677..8c08aac06b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -150,6 +150,12 @@
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@@ -183,6 +189,12 @@
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@@ -2368,6 +2404,29 @@
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@@ -2536,6 +2595,12 @@
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@@ -6059,6 +6154,12 @@
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@@ -6253,6 +6369,12 @@
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@@ -6448,6 +6570,55 @@
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@@ -6732,6 +6903,12 @@
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@@ -6742,6 +6919,248 @@
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+          "requires": {
+            "restore-cursor": "1.0.1"
+          }
+        },
+        "figures": {
+          "version": "1.7.0",
+          "resolved": "https://registry.npmjs.org/figures/-/figures-1.7.0.tgz",
+          "integrity": "sha1-y+Hjr/zxzUS4DK3+0o3Hk6lwHS4=",
+          "dev": true,
+          "requires": {
+            "escape-string-regexp": "1.0.5",
+            "object-assign": "4.1.1"
+          }
+        },
+        "onetime": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
+          "integrity": "sha1-ofeDj4MUxRbwXs78vEzP4EtO14k=",
+          "dev": true
+        },
+        "restore-cursor": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/restore-cursor/-/restore-cursor-1.0.1.tgz",
+          "integrity": "sha1-NGYfRohjJ/7SmRR5FSJS35LapUE=",
+          "dev": true,
+          "requires": {
+            "exit-hook": "1.1.1",
+            "onetime": "1.1.0"
+          }
+        }
+      }
+    },
     "livereload-js": {
       "version": "2.2.2",
       "resolved": "https://registry.npmjs.org/livereload-js/-/livereload-js-2.2.2.tgz",
@@ -6906,6 +7325,89 @@
       "integrity": "sha1-7dFMgk4sycHgsKG0K7UhBRakJDg=",
       "dev": true
     },
+    "log-symbols": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/log-symbols/-/log-symbols-2.1.0.tgz",
+      "integrity": "sha512-zLeLrzMA1A2vRF1e/0Mo+LNINzi6jzBylHj5WqvQ/WK/5WCZt8si9SyN4p9llr/HRYvVR1AoXHRHl4WTHyQAzQ==",
+      "dev": true,
+      "requires": {
+        "chalk": "2.3.0"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "3.2.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.0.tgz",
+          "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug==",
+          "dev": true,
+          "requires": {
+            "color-convert": "1.9.0"
+          }
+        },
+        "chalk": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.3.0.tgz",
+          "integrity": "sha512-Az5zJR2CBujap2rqXGaJKaPHyJ0IrUimvYNX+ncCy8PJP4ltOGTrHUIo097ZaL2zMeKYpiCdqDvS6zdrTFok3Q==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "3.2.0",
+            "escape-string-regexp": "1.0.5",
+            "supports-color": "4.5.0"
+          }
+        },
+        "supports-color": {
+          "version": "4.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.5.0.tgz",
+          "integrity": "sha1-vnoN5ITexcXN34s9WRJQRJEvY1s=",
+          "dev": true,
+          "requires": {
+            "has-flag": "2.0.0"
+          }
+        }
+      }
+    },
+    "log-update": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/log-update/-/log-update-1.0.2.tgz",
+      "integrity": "sha1-GZKfZMQJPS0ucHWh2tivWcKWuNE=",
+      "dev": true,
+      "requires": {
+        "ansi-escapes": "1.4.0",
+        "cli-cursor": "1.0.2"
+      },
+      "dependencies": {
+        "ansi-escapes": {
+          "version": "1.4.0",
+          "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-1.4.0.tgz",
+          "integrity": "sha1-06ioOzGapneTZisT52HHkRQiMG4=",
+          "dev": true
+        },
+        "cli-cursor": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-1.0.2.tgz",
+          "integrity": "sha1-ZNo/fValRBLll5S9Ytw1KV6PKYc=",
+          "dev": true,
+          "requires": {
+            "restore-cursor": "1.0.1"
+          }
+        },
+        "onetime": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
+          "integrity": "sha1-ofeDj4MUxRbwXs78vEzP4EtO14k=",
+          "dev": true
+        },
+        "restore-cursor": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/restore-cursor/-/restore-cursor-1.0.1.tgz",
+          "integrity": "sha1-NGYfRohjJ/7SmRR5FSJS35LapUE=",
+          "dev": true,
+          "requires": {
+            "exit-hook": "1.1.1",
+            "onetime": "1.1.0"
+          }
+        }
+      }
+    },
     "loglevel": {
       "version": "1.5.1",
       "resolved": "https://registry.npmjs.org/loglevel/-/loglevel-1.5.1.tgz",
@@ -8027,6 +8529,15 @@
         "remove-trailing-separator": "1.1.0"
       }
     },
+    "npm-path": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/npm-path/-/npm-path-2.0.4.tgz",
+      "integrity": "sha512-IFsj0R9C7ZdR5cP+ET342q77uSRdtWOlWpih5eC+lu29tIDbNEgDbzgVJ5UFvYHWhxDZ5TFkJafFioO0pPQjCw==",
+      "dev": true,
+      "requires": {
+        "which": "1.3.0"
+      }
+    },
     "npm-run-path": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-2.0.2.tgz",
@@ -8036,6 +8547,17 @@
         "path-key": "2.0.1"
       }
     },
+    "npm-which": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/npm-which/-/npm-which-3.0.1.tgz",
+      "integrity": "sha1-kiXybsOihcIJyuZ8OxGmtKtxQKo=",
+      "dev": true,
+      "requires": {
+        "commander": "2.11.0",
+        "npm-path": "2.0.4",
+        "which": "1.3.0"
+      }
+    },
     "npmlog": {
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/npmlog/-/npmlog-4.1.2.tgz",
@@ -8270,6 +8792,45 @@
         "wordwrap": "1.0.0"
       }
     },
+    "ora": {
+      "version": "0.2.3",
+      "resolved": "https://registry.npmjs.org/ora/-/ora-0.2.3.tgz",
+      "integrity": "sha1-N1J9Igrc1Tw5tzVx11QVbV22V6Q=",
+      "dev": true,
+      "requires": {
+        "chalk": "1.1.3",
+        "cli-cursor": "1.0.2",
+        "cli-spinners": "0.1.2",
+        "object-assign": "4.1.1"
+      },
+      "dependencies": {
+        "cli-cursor": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-1.0.2.tgz",
+          "integrity": "sha1-ZNo/fValRBLll5S9Ytw1KV6PKYc=",
+          "dev": true,
+          "requires": {
+            "restore-cursor": "1.0.1"
+          }
+        },
+        "onetime": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
+          "integrity": "sha1-ofeDj4MUxRbwXs78vEzP4EtO14k=",
+          "dev": true
+        },
+        "restore-cursor": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/restore-cursor/-/restore-cursor-1.0.1.tgz",
+          "integrity": "sha1-NGYfRohjJ/7SmRR5FSJS35LapUE=",
+          "dev": true,
+          "requires": {
+            "exit-hook": "1.1.1",
+            "onetime": "1.1.0"
+          }
+        }
+      }
+    },
     "ordered-read-streams": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/ordered-read-streams/-/ordered-read-streams-0.3.0.tgz",
@@ -8723,6 +9284,33 @@
         "utila": "0.4.0"
       }
     },
+    "pretty-format": {
+      "version": "21.2.1",
+      "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-21.2.1.tgz",
+      "integrity": "sha512-ZdWPGYAnYfcVP8yKA3zFjCn8s4/17TeYH28MXuC8vTp0o21eXjbFGcOAXZEaDaOFJjc3h2qa7HQNHNshhvoh2A==",
+      "dev": true,
+      "requires": {
+        "ansi-regex": "3.0.0",
+        "ansi-styles": "3.2.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+          "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+          "dev": true
+        },
+        "ansi-styles": {
+          "version": "3.2.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.0.tgz",
+          "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug==",
+          "dev": true,
+          "requires": {
+            "color-convert": "1.9.0"
+          }
+        }
+      }
+    },
     "private": {
       "version": "0.1.8",
       "resolved": "https://registry.npmjs.org/private/-/private-0.1.8.tgz",
@@ -9297,6 +9885,12 @@
       "integrity": "sha1-jGStX9MNqxyXbiNE/+f3kqam30I=",
       "dev": true
     },
+    "require-from-string": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.1.tgz",
+      "integrity": "sha1-xUUjPp19pmFunVmt+zn8n1iGdv8=",
+      "dev": true
+    },
     "require-main-filename": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-1.0.1.tgz",
@@ -9419,6 +10013,23 @@
         "rx-lite": "4.0.8"
       }
     },
+    "rxjs": {
+      "version": "5.5.6",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-5.5.6.tgz",
+      "integrity": "sha512-v4Q5HDC0FHAQ7zcBX7T2IL6O5ltl1a2GX4ENjPXg6SjDY69Cmx9v4113C99a4wGF16ClPv5Z8mghuYorVkg/kg==",
+      "dev": true,
+      "requires": {
+        "symbol-observable": "1.0.1"
+      },
+      "dependencies": {
+        "symbol-observable": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/symbol-observable/-/symbol-observable-1.0.1.tgz",
+          "integrity": "sha1-g0D8RwLDEi310iKI+IKD9RPT/dQ=",
+          "dev": true
+        }
+      }
+    },
     "safe-buffer": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.1.tgz",
@@ -10111,6 +10722,12 @@
       "integrity": "sha1-VHxws0fo0ytOEI6hoqFZ5f3eGcA=",
       "dev": true
     },
+    "staged-git-files": {
+      "version": "0.0.4",
+      "resolved": "https://registry.npmjs.org/staged-git-files/-/staged-git-files-0.0.4.tgz",
+      "integrity": "sha1-15fhtVHKemOd7AI33G60u5vhfTU=",
+      "dev": true
+    },
     "state-toggle": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/state-toggle/-/state-toggle-1.0.0.tgz",
@@ -10375,6 +10992,15 @@
       "integrity": "sha1-1cdSgl5TZ+eG944Y5EXqIjoVWVI=",
       "dev": true
     },
+    "stream-to-observable": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/stream-to-observable/-/stream-to-observable-0.2.0.tgz",
+      "integrity": "sha1-WdbqOT2HwsDdrBCqDVYbxrpvDhA=",
+      "dev": true,
+      "requires": {
+        "any-observable": "0.2.0"
+      }
+    },
     "string-replace-loader": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/string-replace-loader/-/string-replace-loader-1.3.0.tgz",
@@ -10433,6 +11059,17 @@
         "is-hexadecimal": "1.0.1"
       }
     },
+    "stringify-object": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/stringify-object/-/stringify-object-3.2.1.tgz",
+      "integrity": "sha512-jPcQYw/52HUPP8uOE4kkjxl5bB9LfHkKCTptIk3qw7ozP5XMIMlHMLjt00GGSwW6DJAf/njY5EU6Vpwl4LlBKQ==",
+      "dev": true,
+      "requires": {
+        "get-own-enumerable-property-symbols": "2.0.1",
+        "is-obj": "1.0.1",
+        "is-regexp": "1.0.0"
+      }
+    },
     "stringstream": {
       "version": "0.0.5",
       "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",
@@ -10519,6 +11156,12 @@
       "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
       "dev": true
     },
+    "symbol-observable": {
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/symbol-observable/-/symbol-observable-0.2.4.tgz",
+      "integrity": "sha1-lag9smGG1q9+ehjb2XYKL4bQj0A=",
+      "dev": true
+    },
     "symbol-tree": {
       "version": "3.2.2",
       "resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.2.tgz",
diff --git a/package.json b/package.json
index 954a6fe7e1..0748851981 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,7 @@
     "husky": "^0.14.3",
     "istanbul": "^0.4.2",
     "jsdom": "^11.2.0",
+    "lint-staged": "^6.0.0",
     "mocha": "^3.1.2",
     "node-sass": "^4.5.3",
     "prettier": "1.10.1",
@@ -74,10 +75,13 @@
       "transform-object-rest-spread"
     ]
   },
+  "lint-staged": {
+    "./{src,test}/**/*.js": ["prettier --single-quote --write", "git add"]
+  },
   "scripts": {
     "lint": "eslint src",
     "check": "npm run lint && npm run test",
-    "precommit": "npm run format && git add .",
+    "precommit": "lint-staged",
     "build": "npm run check && npm run v:patch && npm run build-dev && webpack --env=prod",
     "build-n": "npm run check && npm run build:css && webpack --env=prod",
     "build-dev": "webpack --env=dev && npm run build:css",
diff --git a/src/utils/Droppable.js b/src/utils/Droppable.js
index 29ba28c962..25303f5ec8 100644
--- a/src/utils/Droppable.js
+++ b/src/utils/Droppable.js
@@ -4,10 +4,7 @@ import { bindAll } from 'underscore';
 export class Droppable {
   constructor(em) {
     this.em = em;
-    this.el = this.em
-      .get('DomComponents')
-      .getWrapper()
-      .getEl();
+    this.el = this.em.get('DomComponents').getWrapper().getEl();
     this.counter = 0;
     bindAll(
       this,