TODO
====

- Element
  o depth and z positioning ?
  o can glscale -1 for mirroring / flipping, or just use rotation ?

- Stage
 o Events - mouse

- Texture
 o display lists ?

- Rect
 o rounded
 o gradients ( or add to elements ? )
 o general polygon handler ?

- Video Texture
 o complete API from bacon-video-widget *Mostly done*
 o Work with pixel aspect and use this info to size element correctly ?
 o mostly rewrite or check with orig author for LGPL.

- Group
 o apply tranforms to group of elements
 o scissor to clip
 o sizing ? how does set/get_geometry affect ?
 o stacking orders with 'depth' value.

- GST
 o Fix FIXME's
 o Remove and use fake sinc instead

- Audio api for sound effects etc

- Document, Document, Document!
 o fix GTK Doc set up with index, grouping etc

- Glitz integration ?