Added implementation for the handling of EPICS commands and channels.
Add handling of EpicCommand and EpicsChannel to the CommandContainer object.
Fix typo in the Exporter command init sequence.
New implementation for Epics based on the Taco implementation. Does fix the
freezing issue of the GUI when EPICS channels are defined.
To be cleanup up and tested more thouroughly.
Fix exception when leasving the MxCuBE application.
Merge pull request #2 from hellmig/esrf_visit

Esrf visit