gui/channellist: display event list asynchronously
gui/channellist: paint_events thread: re-check for channel change after small grace period
gui/channellist: display event list asynchronously: limit to single paint_events thread
gui/channellist: display event list asynchronously: move semaphore and lock to class
gui/channellist: display event list asynchronously: fix thread termination
CChannelList: ensure erase of clock after stopping
gui/channellist: fix paint_events thread creation
Merge branch 'master' of github.com:TangoCash/neutrino-mp-cst-next