package/tvheadend: bump version

The list of changes is too long to repeat here, but lots of fixes
and improvements, plus a brand new rewrite of the DVB handling code.

Refresh patches, except patch 4 which has now been upstreamed.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>