+ fix datetime start/stop strings sometimes only showing the date and not the time
XMLTV Program(s): * single column asending/descending support
+ current wip
+ handle unparsed root nodes, just like handling unparsed program nodes
+ use a Properties dictionary to hold the Program metadata
+ update intefaces with generic versions
+ add support to cancel parseing when main form is closed
+ use a MarshalByRefObject
+ add support to save and read serialized Program/Channel data
+ basic layout for Program entries
+ implement channel parsing
+ add interaces.cs