* idx_t -> Idx_t and replacing all uint32_t/long_t I could find

* as well as gui_focus_group, manual_identities and other variables related to identities

* updating docs

* opening/closing video in separate thread

* using averaging_method_t

* find sphinx, add docs target

* fix continuous refresh

* quiet setting for conda prefixes
* updated documentation
* fixing one possible crash

* update docs

* renaming heatmap parameters

* hack to make it work on OSX