* Flowchart block selectedness now only modified by Block.Execute at runtime
Blocks can suppress auto-selection in flowchart window due to execution
Events can suppress auto-selection in flowchart window by activation
Variable returns value as object
Flowchart rightclick menu commands for interacting with blocks
Right click menu for variable list for add, rmove and sort
Add IVariableReference
Add DebugBreak command, also useful for attaching IDE breakpoints to
* IBlockCaller now uses IStringLocationIdentifier
Steve Halliwell