fixed printing of default module when empty string is logged, closes #2357; added printf-style calls to log level classes, closes #1165; default log level changed from OF to empty string so explictly setting a module to an empty string works as expected aka no module
Merge remote-tracking branch 'upstream/develop' into develop
ofParameter: trying to fix friend for osx
ofParameter: trying to fix friend in read only paramter for osx
Merge branch 'bugfix-ofParameterFriend' of 10.42.0.1:Desktop/openFrameworks into bugfix-ofParameterFriend

Conflicts:
	libs/openFrameworks/types/ofParameter.h
fix for ofReadOnlyParameter
remove unused files
makefile osx xocde3: fixes glfw
Merge branch 'develop' of github.com:openframeworks/openFrameworks into develop
Merge pull request #2360 from danomatika/develop

ofLog: fix module print when given empty string & add printf style function to log level classes