PAC Manager Code

. Added an option under "Preferences" -> "Terminal Options" -> "Look and Feel" to allow hidding the bottom status bar
. Removed PAC main's bottom status bar ("too" many pixels just to know how many terminals are open ;)
. Fixed a security bug that prevented using more than 8 characters for PAC "lock/unlock GUI" feature. After update, *YOU NEED TO REACTIVATE THIS FUNCTIONALITY* in order to use it again (sorry for this...)
. Fixed a bug that prevented saving confgs if "Infer from KeePass" is checked but no username/password was introduced
. Fixed a bug that prevented the keyboard focus from being setup on focused tabs
. Fixed a bug that prevented removing a cluster
. Added the possibility to temporary change "LOCAL - SHELL" label (right-click mouse menu over terminao)
. Some aesthetic code changes
. Some minor code changes