* renamed *documentstreamencoder to *modelstreamencoder
* added *modelexporter, esp. modelencoderfilesystemexporter which simply
  takes a *modelstreamencoder 
* moved now unused *coltextexport from gui to
  oktetakakao/io/bytearrayviewtextrenderer/*columntextrenderer
* added *columntextrenderer as bytearrayviewtextstreamencoder
* updated kbytearrayvaluestreamencoder and kbytearraytextstreamencoder to use
  the current settings of the view
* added a controller for the export facility
* added export controller to the program


svn path=/trunk/KDE/kdeutils/okteta/; revision=808544