cleanup in target
update db for efl 1.8
update 'panes' funcs in database
fix leak
Managing session deletion in simulation mode

  - when object is created, callback on evas obj del is assigned to it, in order to
    be able to session_eo_set(NULL). ('back' button in target window)
  - if we press X on target's(emulator's) window, all simulated content is
    deleted, and session_del() is called.
  - only when simulating "Desktop" mode from cmd, need to enforce
    deletion.
add callback, which will be called when all simulated objects are deleted
delete session in gui with usage of callback on population == 0
delete target win, when session is deleted
API targets_list_get() added
add targets list to editor
TODO up