Refactored js code.
-Added `FilesystemHelper` class to call filesystem functions in more convenient way
Merge branch 'master' of https://github.com/googlei18n/incremental-fonts

Conflicts:
	run_time/src/gae_server/chrome/js/script.js
Refactored JS code, fixed js linting errors
Merge branch 'master' of github.com:ahmet-celik/incremental-fonts

Conflicts:
	run_time/src/gae_server/chrome/js/filesystem-helper.js
	run_time/src/gae_server/chrome/js/script.js
	run_time/src/gae_server/chrome/sample_timing.html
	run_time/src/gae_server/chrome/webfont_vs_incrfont.html
Linting of the js codes
Merge remote-tracking branch 'upstream/master'
Code reformatting
Merge pull request #66 from ahmet-celik/master

Linting and formatting of the js codes