Make top-pages script take language command line parameter
Make top-pages script take language command line parameter

Delay defining the language specific variables until reading the
process parameters.

Also: use the same blacklist as for the most-read endpoint.

Change-Id: Iee46c1744cea2bc80623da424302f3c475fae925

wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps