new vertexbufferobject
vboutils moved
getter for id
new buffer method

the buffer-method returns the id and buffers the data
new glspritesheet class
added header comment
deleted old renderer things
screen class as wrapper for the display class
rectangle primitive
final modifier added
render without Renderer parameter
correction of clearcolor-setter

+ setter for title
unecessary annotation removed
correction, Renderer-Interface doesn't exists more
enabled and disabled GL_TEXTURE_2D

without it doesn't work :(
renamed GLSpritesheet -> Texture
Deleted Tile
moved into gfx.texture
added texture scale-enum

those constants are for texture-scaling options
added parameter linear