[BUGFIX] Update ext_autoload.php
Merge pull request #219 from bjo3rnf/autoload

[BUGFIX] Update ext_autoload.php
[TASK] Correct userFunc reference for cache clearing command
Merge pull request #221 from NamelessCoder/userfuncreference

[TASK] Correct userFunc reference for cache clearing command
[TASK] Update Travis-CI script to install extension using EXT:builder
[TASK] Reorder tests in Travis-CI script