Wip/fix shortcuts

Nice catch ! I completely forgot to talk about this one. While hacking and testing that felt strange. 
![screen shot 2014-08-06 at 10 23 10](https://cloud.githubusercontent.com/assets/197573/3824131/f2a5cad4-1d42-11e4-85a7-275ed61d0e2d.png)

I cherry-picked the commits about feedback (https://github.com/typesafehub/activator/commit/b9a71579465c95e36d882c6b41c688c04f07eef2#diff-d41d8cd98f00b204e9800998ecf8427e and https://github.com/typesafehub/activator/commit/bcf15ea821b4fd0c67c0cbfc4b589344970fd6f5#diff-d41d8cd98f00b204e9800998ecf8427e):
When compile/clean/reload are called from this menu, which is located next to the compile icon, it feels right to see the icon glowing. But it doesn't when it's something else. That's why the on/off  icon is glowing instead for other commands. The same applies for run (+ start) and test.