breakpoint classes
refactor after code comments
rename mixin file
dont need all to be in a string
Added testing instructions
Fixed build errors
Manually adding the files for testing
Merge pull request #18 from gabrielrinaldi/master

Fixed build errors
Adding Image Replacement utility
Adding Link Complex utility
Adding placeholders to Link Complex utility
Removing unneeded utilities
Adding Disguised Link utility
Removing redundant text in intro comment block
add comments and cleanup
Adding Momentum Scrolling utility
Adding demo.html to gitignore
Cleaning up utilities
Adding Float utility
Updating TODO