iOS8 Support

[ksons]

We need to fix some bugs for a reliable iOS 8 support:

• Bugfixes
  • Test Suite
  • XML3D Examples
  • POI Client
• Devices
  • Desktop Safari
  • iPad 2
  • iPhone 4S
  • iPhone 6

[ksons]

Known issue: Video textures don't work on Safari iOS, because we can't easily start the video and it won't be autostarted. A discussion about this can be found here:
http://stackoverflow.com/questions/12496144/can-you-autoplay-html5-videos-on-the-ipad