Streamline initializer and service blueprints

Fixes #2259
Merge pull request #2260 from jgwhite/streamline-exports

Streamline initializer and service blueprints
Add ember-export-application-global to default app blueprint.
Merge pull request #2270 from rwjblue/export-global

Add ember-export-application-global to default app blueprint.
correct typo
Merge pull request #2274 from dondanhill/master

correct typo
Fix gitignore in app blueprint

Directory patterns should not end in `\*`.
Merge pull request #2285 from xymbol/fix-gitignore

Fix gitignore in app blueprint
Switch .jshintrc predefs to arrays
Merge pull request #2286 from SaladFork/master

Switch .jshintrc predefs to arrays
Include baseURL in server output.
Replace broccoli-file-remover with broccoli-funnel.

* Uses more intelligent caching (avoids repeated globbing).
* Does not have issue with accidentally following symlinks and causing
  upstream file deletion.
* Generally better ;)
Merge pull request #2291 from rwjblue/include-base-url-on-server-start

Include baseURL in server output.
Merge pull request #2290 from rwjblue/remove-file-remover

Replace broccoli-file-remover with broccoli-funnel.
Ensure that generated addon's are in strict mode.
Merge pull request #2295 from rwjblue/use-strict-addon-index

Ensure that generated addon's are in strict mode.
bump es6-concatenator to get file names in specific error scenarios
Merge pull request #2297 from stefanpenner/file-names-in-error

bump es6-concatenator to get file names in specific error scenarios
Add --watcher=polling option to Test command.
Merge pull request #2296 from rwjblue/allow-test-server-polling

Add --watcher=polling option to Test command.