Added IE7 support
added ie7 option in docs
fixed failing npm install
Merge pull request #96 from bloodyowl/feature.ie7

Add optional IE7 support.
Changelog.
v0.3.1
Clean up Gruntfile.
Tweak Readme.
matchdep → load-grunt-tasks.
Update deps.
Fixed minor spelling issue
Merge pull request #98 from rickpastoor/master

Fixed minor spelling issue
fixed a small typo in IE7