Optimizations + additional features

• Improved loading speed and overal performance by changing the texture allocation behaviour
• Ability to use VSync (will reduce tearing effects when animating, like in the carrousel mode)
• Support of graphic cards without hardware vertex processing capabilities (for example some mobile graphic chips)

Bug fixes

• Crash on exit after using fullscreen slideshow
• Crash when solving a device lost problem while playing a video
• Crash when switching between viewmodes while playing a video
• Crash when exiting the application while decoding an image
• Slides in the slideshow cannot be moved