Build restyling structure

-Build custom.less with vars and mixins
-Set coloring for each tile
-Set game container color

Recoloring is now available by changing value of @basecolor in custom.less
Import main.css in custom.less
Import main.css in custom.less
experimenting with color schemes
Set game message color
Included Purecss for form and button styling

-In styles: buttons.css, forms.css
-Other changes: started building message markup in html_actuator.js
Update misc stylings
Restyled buttons and misc changes

-Buttons now have @bgcolor
-Removed unused key bindings (Fuck)
Started styling header and page text
Win message styling
Finalized text styling

Also added some text in markup
Added social sharing buttons
Corrected typo :)
Added favicon & og image
Set game goal to 1024
Compiled css
Removed prefixfree.js
Merge branch 'restyle'