Redis Client: Use builtin class loader.

Use builtin Redis_Client_Predis::setPredisAutoload() instead of
custom anonymous function.
Read README.Predis.txt of Redis Drupal module.
Merge pull request #3082 from sergii-tkachenko/redis-client-use-builtin-class-loader

Redis Client: Use builtin class loader.
Adds CrowdCurity meta tag to prove ownership
Formatting fix for CrowdCurity header
Merge pull request #3083 from mshmsh5000/DS-401_CrowdCurity

DS-401: CrowdCurity