Clean up some of the Lumina app shortcuts:
1) Add a link to the control panel (if available)
2) Add a link to the Qt configuration UI (if available)
3) Change the desktopbar files menu icon to something that better represents what the button is for.
4) Add tooltips to the desktopbar buttons.
Merge branch 'master' of github.com:pcbsd/pcbsd
Adjust the text for the application store.