LIBOMV-496 Implements new ObservableDictionary class
* Switched out KnownCaps dictionary in GridProxy to use new ObservableDictionary.
LIBOMV-495 Fixes bug while loading saved settings file in WinGridProxy.AboutBox1.resources
LIBOMV-492 Enhancements to WinGridProxy:
* All Selection and Filtering menu uptions should work properly now
* Made several setting optional in the File and Session menu
* Filter preferences can be saved and restored (ie: white/blacklist like in GridProxy)
* Work has began on WinGridProxy session searching
* Switched out CheckedListBoxes for ListViews since they have more flexibility
* Refactored WinGridProxy into multuple classes, major code cleanup
* Capabilities discovered and events sent via the EventQueue are automatically added to the Messages Filter listview
git-svn-id: http://libopenmetaverse.googlecode.com/svn/libopenmetaverse/trunk@2630 52acb1d6-8a22-11de-b505-999d5b087335
