use CursorLoader to load data.

Signed-off-by: Flycoding <Flycoding@yeah.net>
add background color for conversation item(odd or even).

Signed-off-by: Flycoding <Flycoding@yeah.net>
add conversation detail feature.

Signed-off-by: Flycoding <Flycoding@yeah.net>
finish new message button function.

Signed-off-by: Flycoding <Flycoding@yeah.net>
add folder ui.

Signed-off-by: Flycoding <Flycoding@yeah.net>
add ContentObserver for content://mms-sms/conversations/.

Signed-off-by: Flycoding <Flycoding@yeah.net>
folder detail list view.

Signed-off-by: Flycoding <Flycoding@yeah.net>
add sms detail view.

Signed-off-by: Flycoding <Flycoding@yeah.net>
group folder detail items by date. 

Signed-off-by: Flycoding <Flycoding@yeah.net>