Fix up a bunch of little annoyances in lumina-fm:
1) Remove the tab selection of the shortcut buttons (Use the keyboard shortcuts for those instead), now it should only cycle between the dir contents and the dir path edit when the user hits tab.
2) Fix a random bug where the filesystem model is not sending out the "finished loading" signal. Put a manual 1.5 second timer in that will trigger the gui update if necessary.
3) Fix up the selection of the top item in the directory when changing directories (it mostly works, still have a couple random times where it will select something far down in the contents - no pattern detected yet though)
4) Make sure that the directory contents widget keeps keyboard focus when changing directories (if it had focus to begin with).
5) Remove the "edit" menu. The only thin in there was the preferences item (which does not exist yet since I have not found anything to put into user preferences).
Merge branch 'master' of github.com:pcbsd/pcbsd