[pvr] make all livetv views available to the user earlier (as soon as channels are fetched from the backend and before epg is loaded from the db) by changing the pvr/epg manager startup logic
Revert "[epg] fixed - epg load/update was interrupted when the pvr manager imports channels, leading to delays and channel ids gone missing in certain situations"

This reverts commit bdf8842d543fae54067c4dd453bded8474e1044f.

Conflicts:

	xbmc/pvr/PVRManager.h
Merge pull request #1994 from nemphys/pvr-epg-startup

[pvr] make all livetv views available to the user earlier (as soon as channels are fetched from the backend and before epg is loaded from the db) by changing the pvr/epg manager startup logic