Bug 63800: Call handleArgs before GeneratorFactory

Bug 54540 introduced a regression in pagegenerator.py
by instantiating a Site before global argument handling,
causing arguments -family and -lang to be ignored by
the pagegenerators.

Scripts already previously fixed:
protect.py: 9af6e13adb76f7c0ac846f2148839289e2e4808f
delete.py: 0daf5b10b43bd7d380fb4b06b837cb42bdb63bb9

Updated scripts that use pagegenerators.GeneratorFactory
to call pywikibot.handleArgs before instantiating the
factory.

Removed passing around *args if they were unused.

Change-Id: I134529f3a914225d3473b95ca771cf7e7be01a36
Merge "Bug 63800: Call handleArgs before GeneratorFactory"