Merge pull request #99 from DavidMikeSimon/master

PEAR and strict mode issues
disable external XML entities and libxml errors

thanks to Kousuke Ebihara for the report and patch.
Implemented PredisStore to provide association store for Redis servers.
Merge pull request #103 from vmattila/predis-store

Implemented PredisStore to provide association store for Redis servers.
correction for PHP < 5.2.11

libxml_disable_entity_loader (PHP 5 >= 5.2.11)
Fixed wrong expiration command (expiresat -> expireat)
Merge pull request #105 from vmattila/predis-store

Fixed wrong expiration command (expiresat -> expireat)
Changed gist location as the current was returning 404, new Hello World! gist created
Merge pull request #109 from chuckpearce/master

Changed gist location as the current was returning 404, new Hello World!...