Fixed issue #2331: Show prefix log asterisk in Log Dialog

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Signed-off-by: Sven Strickroth <email@cs-ware.de>
Fix "move" missing on drag context menu on empty versioned folders

There seems to be a problem with ITEMIS_INGIT which is not always correctly set (e.g. a file is ITEMIS_NORMAL, but not ITEMIS_INGIT and thus cannot be moved).

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

Signed-off-by: Yue Lin Ho <b8732003@student.nsysu.edu.tw>
Signed-off-by: Sven Strickroth <email@cs-ware.de>