fixed examples
Added a few helpful getters to Projector
another example for Projector extras
updated example
added a few getters
Merge branch 'master' of https://github.com/elliotwoods/ofxRay

Conflicts:
	src/ofxRay/Projector.h

and cleanup
fix bug in getWorldPositionOfNormalizedUCoordinate
Merge pull request #4 from memo/master

fixed examples
err
project fix
remove old examples
Merge branch 'master' of https://github.com/elliotwoods/ofxRay

Conflicts:
	ofxRay-example/Project.xcconfig
	ofxRay-example/openFrameworks-Info.plist
	ofxRay-example/src/main.cpp
	ofxRay-ofPlaneExample/Project.xcconfig
	ofxRay-ofPlaneExample/ofxRay-ofPlaneExample.xcodeproj/project.xcworkspace/contents.xcworkspacedata
	ofxRay-ofPlaneExample/openFrameworks-Info.plist
	ofxRay-ofPlaneExample/src/main.cpp
	ofxRay-ofProjectorExample/src/main.cpp
	ofxRay_example/openFrameworks-Info.plist
	ofxRay_example/src/ofApp.cpp
	ofxRay_ofPlaneExample/Project.xcconfig
	ofxRay_ofPlaneExample/ofxRay_ofPlaneExample.xcodeproj/project.xcworkspace/contents.xcworkspacedata
	ofxRay_ofPlaneExample/openFrameworks-Info.plist
	ofxRay_ofPlaneExample/src/main.cpp
	ofxRay_ofPlanePrimitiveExample/Project.xcconfig
	ofxRay_ofPlanePrimitiveExample/my_ofPlaneExample.xcodeproj/project.pbxproj
	ofxRay_ofPlanePrimitiveExample/my_ofPlaneExample.xcodeproj/project.xcworkspace/contents.xcworkspacedata
	ofxRay_ofPlanePrimitiveExample/openFrameworks-Info.plist
	ofxRay_ofPlanePrimitiveExample/src/main.cpp
	ofxRay_ofProjectorExample/Project.xcconfig
	ofxRay_ofProjectorExample/openFrameworks-Info.plist
	ofxRay_ofProjectorExample/src/main.cpp
	ofxRay_simplePlaneExample/Project.xcconfig
	ofxRay_simplePlaneExample/src/main.cpp
	src/ofxRay/Projector.h
clean code and add comments