Merge pull request #34 from puphpet/master

Checking that module is not installed before attempting to ensure it
Fix for spec tests on ruby 1.8
Release tagged and published to the Forge
Fix for Puppet 2.6 compatibility
Release tagged and published to the Forge
Added php::conf define
Release tagged and published to the Forge
Change official git repo url in README.md
Merge pull request #36 from yahiko/patch-1

Change official git repo url in README.md
Updated Geppetto project file
Release v2.0.15