Fixes #2046
Merge pull request #2048 from bakercp/develop-clean

Fixes #2046
changes to makefile for arch linux
Merge pull request #2073 from underdoeg/bugfix-makfile-arch

changes to makefile for arch linux
add setter for OpenAL's distance model
Merge pull request #2078 from admsyn/feature-ios-openal-distancemodel

add setter for OpenAL's distance model in ofxOpenALSoundPlayer
fix std namespace for shared_ptr
change ifdef for c++11
Merge pull request #2079 from underdoeg/feature_c11_compatible

fix std namespace for shared_ptr, weak_ptr, ...