AMediaFile with pointer on Engine for depencies access
VertexManager useless inheritence removed
Virtual dtor for Vertex Manager
Full integration of VM but nothing is displayed on screen
Some tests
Some not concluant tests
Merge pull request #103 from PFA-OpenGL/callback-on-transform

Callback on transform
test somme change
Merge branch 'master' into vertex-manager-clean-integration
correction of an error in constructor copy
vertexManager fix, error cause by stupid error of inattention, close #102
remove a glFinish
Debug functions commented
Merge pull request #109 from PFA-OpenGL/vertex-manager-clean-integration

Vertex manager clean integration
merge with master