Introduce a logging class with KLogger

KLogger is a simple PHP logging class (http://codefury.net/projects/klogger/)
Eventually all uses of echo should be replaced with this logger.
Load the KLogger class file
Fix path
Try and fix path again
wtf
Fix??
Add git submodules to travis beforeinst
Fix capitalizzzation! :>
Merge pull request #123 from addshore/logging

Introduce a logging class with KLogger