mirrored revision 879. changes:
* Better exception handling. Will not crash on loading and parsing errors, just show error message
* Improved drag-and-drop for main window, now can handle multiple selection of .xml and .pdb files
* Locked possibility of loading .pdb twice
* Support of parsing constructors (ctor or .ctor) in stacktraces
* Param substitution
* Added drag-and-drop to launcher
* Fixed loading of compiler-generated names with <>
* Added PDB Manager