test to handle this case

Signed-off-by: François Revol <revol@free.fr>

* use of browser 2
* choose between videos version (ie: subtitles or not)
* support of cinema.arte.tv

weboob.tools.browser -> weboob.deprecated.browser
weboob.tools.parsers -> weboob.deprecated.browser.parsers
weboob.tools.mech -> weboob.deprecated.mech
weboob.browser2 -> weboob.browser
weboob.core.exceptions -> weboob.exceptions

Also, the new tree for browser2 is:

weboob.browser: import weboob.browser.browsers.* and weboob.browser.url.*
weboob.browser.browsers: all browsers (including PagesBrowser and LoginBrowser)
weboob.browser.url: the URL class
weboob.browser.profiles: all Profile classes
weboob.browser.sessions: WeboobSession and FuturesSession
weboob.browser.cookies: that's a cookies thing
weboob.browser.pages: all Page and derivated classes, and Form class
weboob.browser.exceptions: specific browser exceptions
weboob.browser.elements: AbstractElement classes, and 'method' decorator
weboob.browser.filters.*: all filters

They bring nothing of value (we never use import * anyway) and introduce
a maintenance burden.

The __all__ that I left might not be very useful either but at least
they are not a pain to maintain; they are also used by pyflakes in some
cases.

- parse video xml with lxml instead of regexpes
- add a prefix to IDs to know what kind of object it is

Bezleputh authored May 13, 2013 and Romain Bignon committed May 28, 2013

Signed-off-by: Bezleputh <carton_ben@yahoo.fr>
Signed-off-by: Romain Bignon <romain@budget-insight.com>

Remove useless trailing \
Remove trailing spaces
Add missing empty lines

autopep8 -ir -j2 --select=E301,E302,E502,W291,W293,W391 .

Diff quickly checked.

do not use thumbnail_url anymore (closes #810), use set_empty_fields() method, do not give fields in constructor of BaseVideo anymore