Created IncrementalFontLoader class, and refactored code accordingly
Fixed linting errors
Merge branch 'incremental-loader-class'

Conflicts:
	run_time/src/gae_server/chrome/js/script.js
Added JsDoc comments to IncrementalFontLoader class
Minor format fixes
Minor format fixes and added comments to FilesystemHelper class
Merge pull request #67 from ahmet-celik/master

Created IncrementalFontLoader class, and refactored code accordingly