A bunch of upgrade to fix issue on color and better Sugarizer integration

Three updates:
- Fix color issue: gears blinked (continuously changed color) when coming from Journal. Issue is fixed in JavaScript using a new "hue" field. Could be interesting to be add in CoffeeScript source part too.
- Upgrade the Sugar-web library - and few parts of the source code - to use a more recent version of sugar-web. Use also the version that work both on Sugar and on Sugarizer without any change.
- Update of the CSS file to reduce toolbar width and hide help button when screen is too small. Need for smaller screen (480x320).