Fixes #1805

Sure cookies are persisted to the session, but those new cookies are not added
to the next prepared request. We need to update that new request's CookieJar
with the new cookies.
Initial work towards replacing charade
Fix all remaining references to charade
Update the history and change the last last references to charade
Merge pull request #1810 from kennethreitz/swap-charade-for-chardet

Swap charade for chardet
Merge pull request #1808 from kennethreitz/fix-cookies-saved-on-redirect

Fixes #1805