a few changes to camera position and bar positioning

Change-Id: I256e6855735bea050507c894f91ed895da0e13ba
a few debug statements and cosmetic clean-up

Change-Id: I78cc73cc792f1182abcac0b81e97b948206a11d8
fix alpha calculation

Change-Id: Ic0734ef9a079196d9a0a523dac7726937ed2155f
move glm operator<< for debugging to OpenGLHelper

Change-Id: Ia529badffe08507d593f494230d2e504b68ff477
Revert "fix alpha calculation"

This reverts commit 204efb6a1723f98ff53a61ed249dbff8cb391bb3.

Change-Id: I1756c399adbf0dd3371e8aab1d8021931203c49e
Revert "separate rounded corner bar and normal bar rendering"

This reverts commit 51d5062642189ff5a4330903253c012e83e5ef1f.

Conflicts:
	chart2/source/view/main/GL3DRenderer.cxx

Change-Id: Id21e59d2cc605f0d7d637fb889725f0e91fa6cb3