[imdb] use omdbapi instead of imdbapi
[imdb] fix : site changed
Remove dead code
add tab to send queries
[feedly] add test
[meteofrance] fix #1431, call the url that retrieve all the search results
[meteofrance] raise an exception if forecast param is not a city id

closes #1433
[arte] do not crash if 'VDA' fiels is missing in json
[arte] use M3U8 format instead of HBBTV
[videoob] improve m3u8 management in download
[arte] fill video.url with NotAvailable if url is not found
[arte] improve tests
[arte] improve video quality choice
Do not crash if total_seconds() is not implemented

Which is the case with Python 2.6.
We could do the calculation ourselves, but this is not a very important
feature.