Added grid size variable to grid mixin and added animation mixins
Made border radius mixin only require one variable which it will use for all corners, unless others are specified
Added box shadow mixin
Added animations init file
Added rotation mixin
Added transform origin mixin
Added modules init to style.scss
Made clear-after use clear:both rather than extend .clear
Compiled new sass
Removed . from clear after content as it was taking up space when used
Made grid mixin more flexible
Merge pull request #3 from sammygriffiths/master

Latest changes from Sammy.