BugFix: Editor not activating all actions afther new file.
New Relay: Added properties for num. poles and ST/DT.
BugFix: Cicuit: still some bugs afther last changes.
BugFix: Connectors not removing properly.
Circuit: Activate Ctrl-Z, Ctrl-Y, Del
BugFix: Meters Contexmenu issue.
BugFix: Relay strikes again.
BugFix: Crash deleting relay while circuit running.
BugFix: Oscope not removing correctly
