build: update tslint to version ~5.9.0 (#60)

Author: renovate[bot]

package.json

@@ -58,7 +58,7 @@
     "protractor": "~5.2.0",
     "protractor-cucumber-framework": "^4.0.0",
     "ts-node": "~4.1.0",
-    "tslint": "~5.8.0",
+    "tslint": "~5.9.0",
     "typescript": "~2.5.0"
   }
 }

yarn.lock

@@ -1380,7 +1380,7 @@ commander@2.11.x, commander@^2.9.0, commander@~2.11.0:
   version "2.11.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.11.0.tgz#157152fd1e7a6c8d98a5b715cf376df928004563"
 
-commander@~2.12.1:
+commander@^2.12.1, commander@~2.12.1:
   version "2.12.2"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.12.2.tgz#0f5946c427ed9ec0d91a46bb9def53e54650e555"
 
@@ -7140,20 +7140,21 @@ tslib@^1.7.1, tslib@^1.8.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.8.0.tgz#dc604ebad64bcbf696d613da6c954aa0e7ea1eb6"
 
-tslint@~5.8.0:
-  version "5.8.0"
-  resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.8.0.tgz#1f49ad5b2e77c76c3af4ddcae552ae4e3612eb13"
+tslint@~5.9.0:
+  version "5.9.0"
+  resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.9.0.tgz#0fd1d5c56a257d98f812a4d9ebd14f6e02f6e882"
   dependencies:
     babel-code-frame "^6.22.0"
     builtin-modules "^1.1.1"
-    chalk "^2.1.0"
-    commander "^2.9.0"
+    chalk "^2.3.0"
+    commander "^2.12.1"
     diff "^3.2.0"
     glob "^7.1.1"
+    js-yaml "^3.7.0"
     minimatch "^3.0.4"
     resolve "^1.3.2"
     semver "^5.3.0"
-    tslib "^1.7.1"
+    tslib "^1.8.0"
     tsutils "^2.12.1"
 
 tsscmp@~1.0.0: