Update php_pdo_cassandra.hpp

added harcoded driver version. 
check how to do the pecl later.
Merge pull request #7 from sandro-lex/patch-1

Update php_pdo_cassandra.hpp
removed a leak
Merge branch 'master' of https://github.com/Orange-OpenSource/YACassandraPDO
Check alive hook implementation
Merge branch 'reconnect' into retry
Modified connection test, TCP connection status is much safer than simply testing the socket
Missed an include file
Merge remote-tracking branch 'origin/master' into retry
Fixed warning