Refactor the Install Generator a tad.

* Prefer global rescue to begin/rescue.
* short circuit return instead of unless block.
* extract ember-data channel to a method.
* condense ember/ember-data file fetching to one method.
* move private declaration to correct indentation.
Merge pull request #206 from patricksrobertson/pr-generator_cleanup

Refactor the Install Generator a tad.
Reduce duplication in Bootstrap generator.

* Move magic strings into constants.
* Extract layout logic into private method.
Merge pull request #207 from patricksrobertson/pr-bootstrap_cleanup

Reduce duplication in Bootstrap generator.
Removal of unused variable within rails/engine

* Updates CHANGELOG
Merge pull request #209 from dockyard/doug-cleanup-enginew

Removal of unused variable within rails/engine
Update resolver to fix the Inspector's data panel
Merge pull request #211 from teddyzeenny/resolver

Update resolver to fix the Inspector's data panel
Merge branch 'master' into defined