Generate pod components within components subdirectory.
Git based app blueprints

Extends `ember new'`s --blueprint option to accept git remotes in
either git@someservice.com:app-blueprint-test.git or
https://someservice.com/trek/app-blueprint-test.git style git remote
urls.
Merge pull request #2103 from trek/git-app-blueprints

WIP: Git based app blueprints
Merge pull request #2130 from kamalaknn/grp-pod-components

Generate pod components within components subdirectory.
Ensure that the app config does not get mutated by addons.
Merge pull request #2133 from rwjblue/ensure-app-config-wins

Ensure that the app config does not get mutated by addons.
WARP SPEED
Update broccoli-jshint.
Use symlink aware template compiler.