flake8 --select E713, semi-manual fixing

flake8 --select W391,E302,E301,E304

autopep8 can't fix W391 even though it claims it can.
Fixed using a simple custom script.

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

python modernize.py --no-six -f libmodernize.fixes.fix_print -w

With manual fixes as the import was put always on top.

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.

autopep8 -i --select=W602
Also some other minor deprecated syntax changes, like "while 1".
I did not commit the less obvious changes.

refs #806

* comment out or remove some debug prints
* try to cope with non-UTF-8 title passed (1013483).
Couldn't get it to be recoded yet.
* handle boggus url to xml config file (http:/...) (1015020)
* handle iframes with page name different than 'player.html' (1013798)
* handle xml config filenames with spaces (1441)
* catch xml config names with 'smil' as hostname, which means speakervideo
points to a smil file describing the streams, and take the file with the
highest bitrate
* account for xml config with only valid slidesvideo (1016627) and use it
as fallback
* handle configs with 'Invalid Date' as date text (1016634)

We can now dump the entire gdcvault video files urls with a few exceptions
(403 HTTP errors), and many /mediaProxy.php urls failing to redirect, which
are still to be investigated.

Due to the redirecting pages we cannot be sure of the extension,
so better not lie.

For some entry the /play/ page is a redirect to the file.
This is quite hackish but seems to work.

François Revol authored Mar 22, 2013 and Romain Bignon committed Mar 22, 2013

* Implement search functionality, using POST to get JSON data
* Fix download for most items even for non-free ones.
For now only missing are non-free mp3 files it seems (like 769),
/mediaProxy.php returns 2bytes html crap.