use ConfigParser in priority with python2
[twitter] fix bug when twitter lies to us saying there are more results and returns an empty page
pastealacon: Can now use specialized Browser exception
fix unicode warning
[repl] change formatter when it cannot handle all selected fields
browser2: Add a filter to change the base element used for selectors
pastebin: Convert to browser2, fix some little things

Stop testing public posts, this has been failing for a long time.
Retrieve the date, though it isn't in the capability yet.
Move most of the code in browser.py now that it is cleaner and simpler.

Some more improvements should be coming, but it is already in a much
better state than it was.