Suggest git.wikimedia.org as httplib2 download site
Suggest git.wikimedia.org as httplib2 download site

See Wieland Hoffmanns mail [1] for more details; this should prevent
setup.py install from installing an non-functional httplib2 (that
is: one with outdated SSL certificated)

[1] http://article.gmane.org/gmane.comp.python.pywikipediabot.general/13432

Change-Id: Ia0f91237dde1565a6dd71206c2e0477690cf3855

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