Default to development asset.
Add findWithAssert helper to tests/.jshintrc
allow style preprocessors to pass options
add style-plugin unit tests
Close #1169 Failed build should return non-zero exit code
Merge pull request #1169 from ludekstepan/master

Failed build returns 0 exit code
Update CHANGELOG.md

Updated CHANGELOG.md to include PR number for [#1178](https://github.com/stefanpenner/ember-cli/pull/1178).
Merge pull request #1185 from quaertym/master

Update CHANGELOG.md
[BUGFIX] error when trailing slash present in argument to generator

[fixes #1164]
https://github.com/stefanpenner/ember-cli/issues/1164
Merge pull request #1184 from rondale-sc/fix-trailing-slash-generate-error

[BUGFIX] error when trailing slash present in argument to generator
Update CHANGELOG.md
[Bugfix] fix denodeify of ext/promise

proto to was not set correctly
[Bugfix] reduce boot time costs

nothing ground breaking, just some refactoring to
ensure we don’t end up with a super slow start time.

old: ember version  0.81s user 0.08s system 97% cpu 0.959 total
new: ember version  0.31s user 0.04s system 98% cpu 0.350 total
ensure exceptions return non 0 status code
Merge pull request #1191 from stefanpenner/boot-speedup

Boot speedup
Merge pull request #1192 from stefanpenner/non-zero-on-failure

Non zero on failure
extract pleasant progress
Merge pull request #1194 from stefanpenner/extract-pleasant-progress

extract pleasant progress
Close #1197 ember build --watch should run until SIGTERM
Stay consistent with predefs