Added HHVM support
Added support to PHP 5.3 and HHVM
Fixed .travis with php 5.3
Fixed namespace error for registering methodlist
Fixed namespace for getimagesizefromstring
Added Zend Standard Extension directory structure
Removed the skip flag from the Image test
Improved extension loading
Added extension repository
Fixed typo on authors name
Merge pull request #21 from kinncj/hhvm

Added HHVM Support and backward compatibility with 5.3