Updating help contents and css.
Further updating help contents and css.
Fixing the sidebar-close hotkey on windows breaks linux.
Merge pull request #156 from deannah/helpUpdate

Help update
Use backbone.hotkeys plugin.
Make hotkeys work in input boxes

Unfortunately, the jquery.hotkeys' developers are of the opinion that
one should bind to input boxes manually for hotkey support and haven't
accepted any of the proposed compromises that makes this functionality
configurable.

This commit simply removes the check.
Use backbone.hotkeys in NoteView.
Remove dead code.
Use backbone.hotkeys in AddNotebox
Replace list.it icon.

Not much better but shouldn't piss off M3.

Actually, the smaller icons really need some work.
Don't assume that the composer exists.
Try to force a synchronous sync through on exit.
Perfectly smooth sorting.

Make the sorting smooth. Unfortunately this means we can't use CSS
animations (slower) but they are now really smooth.