In commit:
1) Rename namespace for scn viewer from Ostis.ui.scn to Ostis.scn
2) Re-organize folder structure for Ostis.ui.scn to Ostis.scn
3) Add folder for scn-editor
4) Remove unused libraries(e.g. kinetic)
5) Refactor server project:
5.1) Remove obsolete urls configuration
5.2) Remove obsolete template pages
5.3) Add template page for scn-editor
5.4) Remove obsolete url handlers from articles/views.py 
5.5) Remove obsolete libraries
6) Remove old implementation of scn viewer