Various patches are applied

Various patches are applied

Patch 8/8
    Fix the invalid livebox content event handling code.
    (After changing the event mask, viewer cannot send livebox event correctly.)

Patch 7/8
    Fix the prevent issue

Patch 6/8
    Update License

Patch 5/8
    Replace VALUE_CHANGE with ACTION_DOWN/UP

Patch 4/8
    Resolve prevent issues

Patch 3/8
    Update version

Patch 2/8
    Fix prevent issue: CID 16045

Patch 1/8
    Use the vconf instead of timer.

    To optimize the initiate method.
    While using timer, the library tries to make a connection to a master
    every N sec later.

    But it decrease the system performance, so I just changed the timer
    to the vconf notification.

    Now the viewer will only tries to connect to the master only if its
    state is changed.

    But in the worst case,
    If the master is started, but the viewer fails to connect to a master,
    The viewer will not try to connect to the master again.
    Even if the master is ready to accept a new connection.
    (If we met this case, the system has serious problems.)

Change-Id: Ibe8adfb00dcc2695e366d6cacdce05cb74bc161c