o.c.diag.pvmanager.probe: Track secondary view ID

Used to ignore view IDs used by 'restored' views on CSS restart,
re-using them for newly opened probe instances.
pv.manager.probe: Place toolbar item to 'additions' for Eclipse 4
o.c.security.ui: Place toolbar items rel. to 'additions' for Eclipse 4
o.c.diag.pvmanager.probe: Remove View ID printout
Merge remote-tracking branch 'origin/master' into 4.0.x

Conflicts:
	applications/plugins/org.csstudio.diag.pvmanager.probe/src/org/csstudio/diag/pvmanager/probe/PVManagerProbe.java