ofxParameterGroup: implementation through Poco::Any
ofParameter, ofParameterGroup, example, ofSerializer and ofxXmlSettings modified to support ofSerialiazer
ofxJSON: test for ofSerializer
ofParameter: osc sync of parameters and groups + examples
ofBaseTypes: forward declaration instead of include for ofAbstractParameter
ofParameter: group hierarchy through parent in ofParameter
ofEvent: fix for void events. Closes #1166
ofMain: add ofParmater.h include
Merge branch 'develop' into feature-ofParameter
Merge branch 'feature-VoidEvent' into feature-ofParameter

Conflicts:
	libs/openFrameworks/events/ofEventUtils.h
bidirectional osc synchronizer for ofParameterGroups
Merge branch 'develop' of github.com:openframeworks/openFrameworks into feature-ofParameter

Conflicts:
	addons/ofxGui/src/ofxLabel.h
ofxLabel: fix for ofxParameter -> ofParameter
ofNotifyVoidEvent
ofParameter.h include utils.h
group add
Merge branch 'feature-ofParameter' of https://github.com/elliotwoods/openFrameworks into feature-ofParameter
added ofParmaeter files to osx oF project
switched out ofxBaseGroup
added vec4 support to paramgroups