Migrate docs from RTD to Travis
Created by: cpascual
Migrate the doc auto-buid and publication from readthedocs to Travis. See why and how Taurus did it in: taurus-org/taurus#572
Tasks:
-
build docs from travis and deploy them to github (implemented in #830) -
change the sardana-controls.org domain to point to https://sardana-org.github.io/sardana-doc/ and configure the sardana-doc gihub pages accordingly -
add links to other doc versions (implemented in #842)