Remove lonely reNamespace from page.py
Remove lonely reNamespace from page.py

Only occurrence of this variable in the library.

$ git grep reNamespace
pywikibot/page.py:68:reNamespace = re.compile("^(.+?) *: *(.*)$")

Change-Id: Ifee61a713b9b1fadc54607167b4f8655781e4749

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