Fix gitignore + npmignore files

Author: stefanpenner

.gitignore

@@ -26,4 +26,6 @@
 
 # typescript related output files
 addon/**/*.js
-addon/**/*.d.ts
+addon/**/*.d.ts
+package/
+*.tgz

.npmignore

@@ -21,7 +21,7 @@
 /.travis.yml
 /.watchmanconfig
 /bower.json
-/config/ember-try.js
+/config/
 /CONTRIBUTING.md
 /ember-cli-build.js
 /testem.js
@@ -41,4 +41,9 @@
 # until they have become enforced "public" APIs
 *.ts
 # to enable d.ts consumption remove the next line
-# !*.d.ts
+# !*.d.ts
+!addon/**/*.js
+server/
+tsconfig.json
+*.tgz
+DEPRECATIONS.md

package.json

@@ -27,9 +27,9 @@
     "test:ember": "ember test",
     "test:ember-compatibility": "ember try:each",
     "test-typings": "node node_modules/typescript/bin/tsc",
-    "postpack": "rimraf addon-test-support/**/*.js",
+    "postpack": "rimraf addon/**/*.js",
     "postpublish": "npm-run-all clean",
-    "prepublishOnly": "yarn babel --extensions '.ts' --presets @babel/preset-typescript addon --out-dir addon/ --ignore '**/*.d.ts'"
+    "prepack": "yarn babel --extensions '.ts' --presets @babel/preset-typescript addon --out-dir addon/ --ignore '**/*.d.ts'"
   },
   "dependencies": {
     "ember-cli-babel": "^7.26.6"