[QGIS-Developer] QGIS Doc Travis

[matteo]

Thanks for all the hints. Apparently we were missing something silly
(that's the effect of a remote HackFest :D )

anyway, travis is now happy with both documentation and pyqgis test
(thanks Richard for the fix).

I really think this is the perfect moment to move on to the rtd theme
and release the 3.10 documentation. So what are the blockers? can we
write a todo list and squash all the problems?

That's what comes into my mind:

* verify Transifex pulling/pushing
* apache on the server to publish the docs
* ... what else?

Cheers

Matteo