3.4.10. Adpated to pvr addon api 5.2.1 (3.4.9 was just to ake it compile again).

Bugfix/epg loading time improvements

Since HTSPv6 it turns out we're provided with the ID of any matching DVR
entry. So rather than using a horribly inefficient search algo (especially
when 99.99% of the time there won't be a match) we'll just use the data
provided.

We no longer support anything less than HTSPv10, so no need for a protocol
version check.

Drop duplicate "script: make" from .travis.yml

Fix Travis XCode 6.1 build by upgrading CMake

tinyxml requires at least CMake 3.1

Minor README updates

Fix setting channel type & setting epg uid

HTSP v25 additions