Fix of the bug 1078
OSX build scripts: Add java6 build script, bump default to use java8
Merge remote-tracking branch 'gouessej/master'
Bug 1078: Fix commit 99f91f8b28d42cdf341533736e878056bcae4708 (GLRendererQuirks.NoPBufferWithAccum): Accum buffer allowed if !usePBuffer; Avoid NPE.

99f91f8b28d42cdf341533736e878056bcae4708