Release version 1.2.9

Release version 1.2.9

Changes:
 - Add an exception handling
 - Fix memory leaks
 - Add error return logic to watcher_evas_get_pid
 - Fix screen_connector_watcher_evas_add_by_rid bug
 - Apply tizen remote surface v4, add event filter
 - Fix screen_connector_watcher_remove API bug
 - Add an exception handling about destroying the watcher handle
 - Remove handle from watcher list when watcher destroyed
 - Refactor screen-connector
 - Fix callback disapeared bug
 - Fix destroy handle bug
 - Add tbm buffer destroy logic
 - Fix memory leak
 - Fix memory leak
 - Make widget work.
 - Add bind surface APIs
 - Fix toolkit_table destroy bug
 - Delay resuming time
 - Add APIs to control visibility
 - Add object visible check API
 - Add buffer changed event filter
 - Fix add by rid bug
 - Add APIs for binding and unbinding window
 - Remove evas callback from destroyed surface tbm
 - Clear tbm when surface destroyed
 - Do not destroy buffer when receive same buffer
 - Check multi viewer window visibility
 - Do not unref tbm_surface when receive same buffer
 - Add id exist check logic for toolkit add api
 - Add missing code to find type handle
 - Send move event before mouse up event
 - Modify log level
 - Cancel mouse event when the widget is invisible
 - Fix mouse up crash
 - Add api to get auto visibility
 - Clear buffer reference when toolkit removed
 - Cancel touch event when the screen is binding
 - Unref buffer before bind surface
 - Send multi-down/up events to Display Server
 - Fix viewer list handling bug
 - Fix deref after null
 - Do not use delayed resume for watch
 - Manage toolkit handles in consistent way
 - Add filter feature for screen_connector_toolkit
 - Remove duplicate declaration
 - Calculate flick down/up event
 - Release buffer before setting filter
 - Keep toolkit_table before callback removed_cb
 - Merge branch 'tizen_3.0' into devel/tizen

Change-Id: I1a8dd5f34dd7a727b7abf084d6169886b4088095
Signed-off-by: Hwankyu Jhun <h.jhun@samsung.com>