[COMMENT] Fix spelling in comment.
[ADD] Added methods to put, store and remove policies in Buffered Data
pull.
[ADD] Added stubs to operate with policies from User Interface.
[ADD] Policy-Record pair class and Accept class for stub.
[ADD] Added method to add new policy via Manager class.
[ADD] Delete policy via thread but it's still in a cache till next
synchronization with database.
[ADD] Implementation of changePolicy() core method.
[COMMENT] Removed task comment.
[MODIF] Set policies table modification bit and store buffered policies
via writer thread. Notify outer modules with total policies have been
written.
[SUBMODULE] Apply saving policies notification in tests.