pothos-gui: typeStrToColor() cache and its own header
pothos-gui: created color type string dialog
pothos-gui: common call for color icon
pothos-gui: BlockTreeWidget expand search tree
pothos-gui: block eval moved to impl
pothos-gui: graph block config hash to react to changes
pothos-gui: moved block update impl into EvalGraphBlock
pothos-gui: fix the EvalGraphBlock cache
pothos-gui: switch to list api for block error msgs
pothos: support optional block desc fields
pothos-gui: support param widget and QSpinBox
pothos-gui: keyboard shortcuts and actions for incr/decr
pothos-gui: fix incr/decr only for selected blocks
pothos-gui: added some info to the about box
pothos: updates to various README files
pothos-gui: moved block eval port query to try/catch
pothos-gui: tweaks to properties panel edit widgets
pothos-gui: support new param widget options
pothos-gui: support editable combo box
pothos-gui: properties dock deleted object fix