[TASK] Change userFunc reference for 6.2 compatibility

This one needs testing on 4.5 with thorough cache purge before pass. Might affect 4.x versions' ability to call the method.
Merge pull request #64 from NamelessCoder/62compat

[TASK] Change userFunc reference for 6.2 compatibility
[TASK] Update Travis script to install dependencies on-the-fly
[TASK] Correct path when installing dependencies in Travis script