Added flush all command.
Added delete command.
Fixed command doc comments.
Added stats command.
Added contains command.
Fixed command doc blocks.
Removed use of else conditions.
Added delete message variable initialization.
Added delete test.
Added more command tests. Added array cache test.
fixed typo in attribute name and variable name
Merge pull request #21 from 77web/fix-typo-in-adapter

fixed typo in attribute name and variable name
added redis auth and database parameters
fixed redis configuration
fixed cs
Merge pull request #22 from cdaguerre/redis-conf

Added redis auth and database parameters
Changed command namespace to doctrine:cache.
use psr-4 autoloader
Merge pull request #16 from dragonwize/Add_commands

Add commands
Fix the default ports in the SymfonyBridge layer

The behavior needs to be the same than in the Symfony bridge.
Closes doctrine/DoctrineBundle#345