Add bower.json manifest file

This file will allow people to manage this package using Bower[1]:

  bower insall sass-enhance

[1]: http://bower.io

Change-Id: I38e641bc00f6aaae9f348654a83833927bd6cdb3
Reviewed-on: https://gerrit.causes.com/31481
Reviewed-by: Joe Lencioni <joe.lencioni@causes.com>
Tested-by: Joe Lencioni <joe.lencioni@causes.com>
Release 0.1.0

Change-Id: I48bdbbff0d9c6b882859f2bb26523e29f2ef3106
Reviewed-on: https://gerrit.causes.com/31482
Reviewed-by: Joe Lencioni <joe.lencioni@causes.com>
Tested-by: Joe Lencioni <joe.lencioni@causes.com>