* Moved all colour strategies to modules
* Create a new type of plugins, provisionally loaded when
  KisPluginRegistry's static initializer constructs the singleton.
* Renamed KisGenericFactory, KisFilterFactory and KisColorSpaceFactory
  to ...Registry since these classes do not construct, but register
  and make avialable their objects.
* Removed composite ops. This is a good idea in principle, but comp ops
  belong to the colour strategy and this particular way of doing has
  already been tried and found wanting.

svn path=/trunk/koffice/; revision=334120