Added getMaxRenderTargets() to Renderer, for a runtime-specific value for the maximum simulatenous render targets. We will report this as our maximum draw buffer and color attachment count. TRAC #22656 Signed-off-by: Nicolas Capens Signed-off-by: Shannon Woods Author: Jamie Madill git-svn-id: https://angleproject.googlecode.com/svn/branches/es3proto@2062 736b8ea6-26fd-11df-bfd4-992fa37f6226