#grunt: Removes libs from watch

It takes a bit too long and they're not even being watched; libs can be
compressed by restarting grunt or using grunt package.
Changes error logging to production only
Removes storage-updates.js
Adjusts top left buttons width and button spacing
Uses cursor: pointer for the tutorial button
Adds deprecation notice to notepad widget
Converts background to coffeescript
Adds version bumper to grunt

- Version format: year.yearweek+day.release