Fix _verifyAccuracy to use last event instead of current where needed.
Fix _verifyAccuracy to use last event instead of current where needed.

also added the previous GCD's spell name & id to the error text.

fyruna/WoWAnalyzer,anom0ly/WoWAnalyzer,WoWAnalyzer/WoWAnalyzer,FaideWW/WoWAnalyzer,Juko8/WoWAnalyzer,ronaldpereira/WoWAnalyzer,Juko8/WoWAnalyzer,sMteX/WoWAnalyzer,sMteX/WoWAnalyzer,yajinni/WoWAnalyzer,fyruna/WoWAnalyzer,WoWAnalyzer/WoWAnalyzer,FaideWW/WoWAnalyzer,yajinni/WoWAnalyzer,anom0ly/WoWAnalyzer,hasseboulen/WoWAnalyzer,anom0ly/WoWAnalyzer,anom0ly/WoWAnalyzer,fyruna/WoWAnalyzer,hasseboulen/WoWAnalyzer,Juko8/WoWAnalyzer,hasseboulen/WoWAnalyzer,FaideWW/WoWAnalyzer,yajinni/WoWAnalyzer,ronaldpereira/WoWAnalyzer,WoWAnalyzer/WoWAnalyzer,sMteX/WoWAnalyzer,ronaldpereira/WoWAnalyzer,yajinni/WoWAnalyzer