mms: do not update seen field in markAsUnread operation

This prevents to a seen thread to be notified again after mark as unread

Change-Id: Ib97ded493cdddb261666cffb37bf2f82e827d6a3
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
(cherry picked from commit 20f5f9db19e216c9e9c76dece28a2ac752fe9e89)
mms: markAsUnread only read items (ignore seen flag)

Do not mark threads that are only seen

Change-Id: Iffef7823663918ee0dcbecc0241cde71e5a25bca
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
(cherry picked from commit bfe0558cf0a576e142b47107e65a4db0838bd251)
mms: cleanup markAsUnread code

Change-Id: I66f130d3d05e547106a6658208d95a147a7a9a18
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
(cherry picked from commit a2b2c41cc6fdfb887046b538174f580c94633dbb)
mms: markAllAsUnread is never called

The actual markAllAsUnread code is never called. It requires a new menu to be launched.

Change-Id: If620ca3c41aa091e065ff7646091bc118a072e5d
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
(cherry picked from commit 66088ccbeefba1c40416bfbd7568a0132f0bcb7b)