Zend_Cache Backend multi-connection
Zend_Cache Backend multi-connection

Added proper support for multi-connections/servers and transactional
support.

r-kovalenko/Rediska,r-kovalenko/Rediska,AlphaStaxLLC/Rediska,Shumkov/Rediska,AlphaStaxLLC/Rediska,Shumkov/Rediska,webonyx/Rediska