Fixed issue #2372: Remote Config Tags Dropdown doesn't enable Apply-Button when switching to Reachable

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Settings Dialog should check if current directory is repository

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Drop code that has no effect

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>