pothos-gui: revert and fix action panel html escape
pothos-gui: fix context menu, must use mousePressEvent

//A display widget may accept the mouse event, and we wouldnt want to allow a context.
//To support this design expectation, dont use contextMenuEvent, use mousePressEvent.
pothos-gui: properties panel moved optional docs check
pothos-gui: try/catch for clear topology engine
pothos-widgets: work adding center freq to plotters
pothos-library: added arguments to connect/disconnect error msgs
pothos-library: fix typo in hash for Flow
pothos-library: flow toString for easier debug
pothos-library: fix domainSafeFlows must be unique
pothos-gui: fix multi-select context menu
pothos-library: replace topology assert with helpful error
pothos-opencl: added man in the middle test
pothos-library: trial fix for template specialization symbol error

error: http://pastebin.com/jWdMP2Xy

recommended by boost:
http://www.boost.org/doc/libs/1_56_0/libs/serialization/doc/pimpl.html
pothos-blocks: work on sporadic labeler
pothos-library: added buffer chunk append call
pothos-blocks: use buffer chunk append in Deserializer
pothos-gui: add safety check for combobox edit widget
pothos-library: accumulate when requirement is larger than the actual buffer
pothos-widgets: drop down combobox for num FFT bins
pothos-widgets: added center freq to spectrogram