Removed control directives since it is not needed

The arrows file use Sass salient classes for creating arrows.
Silent classes doesn't get outputed if not used as @extend. So
there is no worry about excess css output; classes will not be
created if arrows are not created!

Keeping them in a control directive increases friction as the author
has to switch on the module to create an arrow. Now the mixin does
all the work but the result is the same.

Friction Reduced, YEAH!!!
Made helpers and mixins utils, rewrote dimensions

Got rid of keyframe animation mixin since autoprefixer does
that better. Helpers are not contained within control directives.
Deleted unneccessary files
Removed not used variables
Fixed comments
Added offset classes
Added offset switches
Whitespace
Import offsets, switch off offset switches
Removed .gitingore
Add reset file
Typo
Whitespace
Removed tables module
Got rid of tables
Added Block list, island and media modules
Import new modules; add switches
Whitespace
Fixed CSS lint warnings
Whitespace