More information hiding

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Use KiB and MiB instead of something between MB and MiB

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Drop unused translations

Signed-off-by: Sven Strickroth <email@cs-ware.de>
GitProgressList: Do not show download progress animation for reset

Signed-off-by: Sven Strickroth <email@cs-ware.de>
GitProgressList: Show "0 B/s" if no progress update was received within 2 seconds

Signed-off-by: Sven Strickroth <email@cs-ware.de>