Add standby detection and handling in reconnect plugin. Fix some more root group contacts handling in SIP protocol.
Fixed brace placement added @Override annotations Fixed a NPE that happens when closing twice the AuthenticationWindow (another actionPerformed() fired during the closing operation) 
Fix a NPE that happens when removing a sip account : The problem was that the GlobalStatusSelectorBox for this account was removed before receiving the sip event so calling stopConnecting gives a NPE
added missing @Override annotations and fixed a typo
Fix sip tests.