Merge pull request #1732 from Spuds/fii

BB error from log, plus mistake in previous mail commit
Merge pull request #1733 from Spuds/fii

Remove extra curly brackets thanks @phantomm for report
! need to include extdir for addon package install / uninstall

Signed-off-by: Spuds <spuds@spudsdesign.com>
! need to account for the stale string when checking file existence

Signed-off-by: Spuds <spuds@spudsdesign.com>