[evol] finished field modifications (relations not managed yet)
[fix] corrected mistake in find() method overload introduced in previous commit
[evol] first experimental attempt for field modifications (with activeldap workaround for #26720)
[evol] code cleanup, and allowed pluralized version of object name in 'list' command
[evol] added tree view
[evol] add operational attributes in expert mode
[evol] added private config load in home, and global hidden attributes (until something really proper is done for config)
[evol] files/code reorganization, and added a proper installer