Audio: GetListenerDirection was using ALfloat and GetListenerRotation
not.
ByteArray: Two return *this, hazh is perturbing, is it intended ?
String: Same ?
Camera: Adds of security (don't think it's usefull)
Parser: size() = 0 -> empty()
Utility: update 13 to 14 was forgotten
VertexDeclaration: same
Former-commit-id: f6db5cd15e5a4dc5ac2af12366b18d1f6922b0e0
e9554ad498