Merge branch 'MON-219' into MON-211
Monetization (MON-211): MonetizationModule - updated caching process
Monetization (MON-211): MonetizationModule - updated memcache key
Monetization (MON-166): MonetizationModule - added cache version
Merge pull request #5013 from Wikia/MON-211

Monetization (MON-166): MonetizationModule - updated caching process