made the docs for bufferPreDraw less ambiguous by saying framebuffer instead of buffer (which buffer???).
made the docs for bufferPreDraw less ambiguous by saying framebuffer
instead of buffer (which buffer???).

also fixed strange wording such as
  Function that is called upon entry into a buffer
   to
  Function that is called once for each frame buffer


git-svn-id: 769d22dfa2d22aad706b9a451492fb87c0735f19@9316 08b38cba-cd3b-11de-854e-f91c5b6e4272

MichaelMcDonnell/vrjuggler,MichaelMcDonnell/vrjuggler,vrjuggler/vrjuggler,LiuKeHua/vrjuggler,godbyk/vrjuggler-upstream-old,vrjuggler/vrjuggler,LiuKeHua/vrjuggler,LiuKeHua/vrjuggler,LiuKeHua/vrjuggler,LiuKeHua/vrjuggler,vrjuggler/vrjuggler,vancegroup-mirrors/vrjuggler,vancegroup-mirrors/vrjuggler,MichaelMcDonnell/vrjuggler,MichaelMcDonnell/vrjuggler,vancegroup-mirrors/vrjuggler,godbyk/vrjuggler-upstream-old,vrjuggler/vrjuggler,MichaelMcDonnell/vrjuggler,vancegroup-mirrors/vrjuggler,godbyk/vrjuggler-upstream-old,MichaelMcDonnell/vrjuggler,godbyk/vrjuggler-upstream-old,LiuKeHua/vrjuggler,vrjuggler/vrjuggler,vrjuggler/vrjuggler,vrjuggler/vrjuggler,LiuKeHua/vrjuggler,godbyk/vrjuggler-upstream-old,vancegroup-mirrors/vrjuggler,MichaelMcDonnell/vrjuggler,godbyk/vrjuggler-upstream-old,vancegroup-mirrors/vrjuggler,vrjuggler/vrjuggler,MichaelMcDonnell/vrjuggler,LiuKeHua/vrjuggler