Patch Set 2: Looks good to me, but someone else must approve; Build Successful; IP review completed

- retargeted for stable-0.11
- rebased
- added missing license headers
- changed keyboard shortcut to explicit CTRL+SPACE to make this also work on Mac where M1+SPACE  translates to COMMAND+SPACE which clashes with spotlight shortcut
- changed to reverse sort order of gerrit changes since the newest ones have the highest number so this should reduce the need for scrolling
- improved order of actions in menu