Bugfix: actually login users that run login.py
Bugfix: actually login users that run login.py

Users were only logged in when they explicitly called -force, while
calling -force did not actually ask users that were logged in to
re-authenticate.

Calling login.py *without* -force now asks the user to log in (or displays
a message when this is already the case). Calling login.py *with* -force
displays a warning message with a description of how to logout (by deleting
the cookie file).


https://mediawiki.org/wiki/Special:Code/pywikipedia/11342

TridevGuha/pywikibot-core,jayvdb/pywikibot-core,wikimedia/pywikibot-core,npdoty/pywikibot,smalyshev/pywikibot-core,magul/pywikibot-core,trishnaguha/pywikibot-core,hasteur/g13bot_tools_new,xZise/pywikibot-core,VcamX/pywikibot-core,jayvdb/pywikibot-core,emijrp/pywikibot-core,valhallasw/pywikibot-core,happy5214/pywikibot-core,h4ck3rm1k3/pywikibot-core,hasteur/g13bot_tools_new,npdoty/pywikibot,h4ck3rm1k3/pywikibot-core,darthbhyrava/pywikibot-local,Darkdadaah/pywikibot-core,magul/pywikibot-core,wikimedia/pywikibot-core,hasteur/g13bot_tools_new,PersianWikipedia/pywikibot-core,Darkdadaah/pywikibot-core,happy5214/pywikibot-core,icyflame/batman