Prepare TVB_Distribution package for Command- contributors and users

Command - Users are using TVB_Distribution with storage and adapters, from command-line.

• We should create a manual for such users.
• In the manual we should refer to the demo-script created by Bogdan. Currently that script is placed in scientific_library/tvb/simulator/demos, but it should not stay there, as library users will have access to it, but it will not work, due to framework dependencies expected.
• shortcuts and package structure should be established for such users.