archivebot: make capitalized templates discoverable
archivebot: make capitalized templates discoverable

Follows up ee42bfd6, which made templates like
https://en.wikivoyage.org/wiki/Template:Auto_archiving
not discoverable when used with the syntax {{auto archiving}}.

Change-Id: I89a7248967c133fc56133c957ea4c32534b3f25a

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