migrate Font Awesome cheat sheet from chitsaou/font-awesome-cheatsheet
fix File.expand_path usage.
remove printf debug
git does not actually lock git submodule at a tag
Merge pull request #32 from chitsaou/font-awesome

Add Font Awesome Cheat Sheet. Closes #31
Fix Font Awesome relative generation
Revert "Fix Font Awesome relative generation"

This reverts commit 22431b395ea90567c28a132a31590ca7033025a9.
Properly fix font awesome relative generation. Closes #31