Distorted lines in `diff` when viewing files `windows-style-line-separator: \r\n`

Prepared diff view for multiple view modes

Converted commits.js to coffeescript
image info in separate coffeescript file

Added swipe view mode

Added onion skin viewMode

Added compare switch

added width and height below images in diff

Replaced commit status images (diff_file_*.png) with fontawesome icons

Merge branch 'master' into non-interactive-aws-install

Conflicts:
	doc/installation.md

Fix merge mess in installation.md