Introduced TFLogger support.
Merge commit '9c2ef6828d8cebbc9b449d789e7f8800ed8682c1' into feature/tflogger_integration

Conflicts:
	Example/Podfile
	Example/Pods/Pods.xcodeproj/project.pbxproj
	Example/Pods/TFLogger/LICENSE
	Example/Pods/Target Support Files/Pods-TFLayoutConstraintsFactory/Pods-TFLayoutConstraintsFactory.debug.xcconfig
	Example/Pods/Target Support Files/Pods-TFLayoutConstraintsFactory/Pods-TFLayoutConstraintsFactory.release.xcconfig
	Pod/Categories/NSLayoutConstraint+TFLayoutConstraintsFactory.m
Changed the default log level in DEBUG mode to be DEBUG.
Merge pull request #8 from TriforkKRK/feature/tflogger_integration

Feature/tflogger integration