Wikia/app — pull request #3145 by wladekb (2014-03-17 13:58:35+00:00)
Title: PLATFORM-113: improvements to lock mechanism in WikiaDataAccess

**DO NOT MERGE**

This is an improvement idea for lock mechanism in WikiaDataAccess:
* clear the local in-request cache before repeating get() from memcached
* use increasing interval for lock probing
Still to be done:
* read data key while obtaining a lock