Some changes
solving bug for database close situation
Merge branch 'f15' of https://github.com/healerkx/scada into f15
Revise interval code
Merge branch 'f15' of https://github.com/healerkx/scada into f15

Conflicts:
	DAQ/Scada.MainVision/ListViewPanel.xaml.cs
Group values
Two chart cooperate
Two chart cooperate
Hpic reset handler
cHART Click avoid single point bUG
Weather has Displayname
Update NaI chart BUG
RealTime draft
Merge branch 'f15' of https://github.com/healerkx/scada into f15
Realtime charts
Merge branch 'f15' of https://github.com/healerkx/scada into f15
confirmed changes