Fixed Image::Get[Width|Height|Depth] returning 1 on invalid images
Removed useless line
Added a Size parameter to View class

Allowing independent from rendertarget size
Made Music class non copyable
Improved Music.cpp (Added comments)
Fixed sprites being rendered upside-down in 2D

This is still waiting for a fix because it will be upside-down in 3D
Improved error message
Fixed possible warning
Fixed possible warning
Made 2D nodes easier to use
Added comment
Fixed Matrix4::IsIdentity()
Removed whitespace
Added Sprite::SetSize(float, float) overload
Added implicit conversion to SparsePtr