complete overhaul with many simplifications.
removed eclipse project files
Pixel<K,1> is now equal to K. integrated types.hpp into image.hpp
made some functions in Image public
added pixel_pointer functions for x/y
integrated anonymous.hpp into image.hpp
added dimensions function and constructor
added function empty to check if the image has size 0
added functions FlipY, SubImage and ConvertToOpenGl
various fixes and minor additions. added more algorithms.