update karma to 0.9 series
Merge pull request #28 from tchak/karma-09

update karma to 0.9 series
Use lockfile for interprocess locking.
Merge pull request #32 from rjackson/use_lockfile

Use lockfile for interprocess locking.
add optional stylus support
Merge pull request #33 from tchak/stylus

add optional stylus support
[fixes #23] spawn subprocesses for watch runs
Various updates:

- upgrade ember to master
- prefer handlebars.runtime.js
prevent from blowing the stack.
improve lock
fixing file name
Merge pull request #37 from twokul/master

fixing file name