fixes #679

bank = xAxis,heading =  yAxis, attitude = zAxis .
The rotation order is Y,Z,X; OpenFrameworks works in row Major so, the
Quaternion multiplication order is- xRotation * zRotation * yRotation.
added comment to specify rotation order
Android Shader Example Fix

Fix for #2825 as described by @micuat
https://github.com/openframeworks/openFrameworks/issues/2825
Merge pull request #2924 from danoli3/android-shader-example-fix

Android Shader Example Fix
updated CHANGELOG
Merge branch 'master' of github.com:openframeworks/openFrameworks
Merge pull request #2881 from Ahbee/bugfix-QuatToEuler

fixes #679
CHANGELOG: add quaternion changes