zapit/src/bouquets.cpp: allow to change GUI channel name in ubouquets.xml;
avoid delete remainChannels bouquet
gui/channellist.cpp: allow to edit provider bouquet
Merge remote-tracking branch 'cool-cst-next/cst-next'
Merge branch 'master' of https://github.com/MaxWiesel/neutrino-mp-cst-next