Changes

* Use XO's mechanism to have update item in control panel(pretty common choice)

* Use XO's mechanism to have update item in control panel(pretty common choice)

** we will have specific option - update only activities

** we will have specific option - update only activities

* Follow [[Unified Objects]] paradigm, one of implementation of this idea is [[Activities/Library]], so give user more freedom in upgrading procedure(i.e. w/o ceilings) - incorporate updating procedure into browsing tool(like Journal), so users get one unified method to browse and update(sync) theirs objects(not only activities).

* Follow [[Unified Objects]] paradigm, one of implementation of this idea is [[Activities/Library]], so give user more freedom in upgrading procedure(i.e. w/o ceilings) - incorporate updating procedure into browsing tool(like Journal, Library), so users get one unified method to browse and update(sync) theirs objects(not only activities).

** in case of [[Activities/Library]] we could have 0.82+ upgrading tool

** in case of [[Activities/Library]] we could have 0.82+ upgrading tool