Merge pull request #28 from JavierCane/devel

Improved findi18n
update sifojs polyfills integration
Integrate support for New Relic in SIFO
More information: http://newrelic.com/monitor-everything
Based on: https://docs.newrelic.com/docs/php/framework-developers-integrated-support-for-new-relic
Merge branch 'master' into devel

* master:
  Integrate support for New Relic in SIFO More information: http://newrelic.com/monitor-everything Based on: https://docs.newrelic.com/docs/php/framework-developers-integrated-support-for-new-relic
Add support to SphinxQL queries on SIFO: Basic classes and debug templates. Only SELECT sentences supported in this version.
SphinxQL: Fix debug templates and check if its mysqli->connect returns null.
Validate email regex used in the Filter class improved

Related to: https://groups.google.com/forum/?hl=en#!topic/sifophp/5o0tkI2nC44