[doc] {laas->morse}-theme + rm old files
[doc] change CSS for <tt> to make it more obvious
[doc] mention OpenRTM in install
[doc] Improved rendering of line num in doc code samples
[doc] Improve CSS for images. Honor :align center:
[doc] Minor change to CSS for admonitions
[services] Expose services exposed by robots in details request

Part of #299
[pymorse] Export robot services as method

Fix #299