[mythtv] Merging the 'render' branch

[John Pilkington]

On 01/12/2019 15:41, John Pilkington wrote:
> On 01/12/2019 11:58, John Pilkington wrote:
> 
>> 253d4df44 built and running for el7.  mythtv-setup segfaulted on exit 
>> after a no-op visit, and the frontend gave the same 'Widget does not 
>> have a window' warning on startup but seems to be running ok.
>>
>> Cheers,
>>
>> John
> 
> And mythpreviewgen trouble again.  None are being autogenerated for SD 
> or redio recordings, the only ones created by this box, and running 
> mythpreviewgen from the keyboard segfaults after printing the Buzzoff 
> protocol version.

I'm seeing the same two commits later, in F30 with nvidia.

The 'edit cursor' problem that I reported earlier, also on both boxes, 
is still present and almost certainly from c794391ade, to which I added 
a typo.  I had been trying to understand the workings of
mythtv/libs/libmythtv/deletemap.cpp and its relationship to
~/.mythtv/themes/MythCenter-wide/osd.xml,
while the commit changed osd.cpp