* Allow for configurable logging option (basic callback function)
* TODO: create level logging
* Bugfix: Ftp methods were note prototype methods
* Uncaught exception now prints stacktrace instead of just the error message
* Bugfix: ftp source was not calling back on error
* Refactored ftp source
* ftp source will not consider 6xx as errors (which is more compliant with return code specifications)
Merge branch 'master' into feature/better-logging

Conflicts:
	server.js
Merge pull request #45 from stelcheck/feature/better-logging

Feature/better logging