pothos-gui: began work on execution engine
pothos-gui: work on connection traversing logic
pothos-gui: error on load when file DNE
pothos-gui: execution engine called on graph change
Merge branch 'master' into execution_engine
pothos-gui: make use of new block name
Merge branch 'master' into execution_engine
pothos-gui: work on dot markup to QImage
pothos-gui: render flat flow graph to dialog image
pothos-gui: fix breaker traversal
pothos-gui: cleanup some in ExecutionEngine.cpp
Merge branch 'master' into execution_engine
Merge branch 'master' into execution_engine
pothos-gui: compilation fix for api change
pothos-gui: properties panel units if available
pothos-gui: stash scratch work on eval
pothos-gui: filling in the block eval code
pothos-gui: block update using new eval code
pothos-gui: BlockObject calls to record property types and errors
pothos-gui: use colors to indicate errors