Revert "Mms: Dispaly wrong text message limit for per conversation"

This made the input number to be shown wrong again. Also, all
custom Mms configs in device overlays are using the value 10000.
Changing all of them to 1000 would be a real pain.

This reverts commit 42aacd7768be263cb6aace84d4f4e332c30b3445.

Change-Id: I0e2d11ef752a0cba9207e0e2399ffbf2867865e0
Mms: Add native heads up support

Add heads up support (optional but enabled by default).

Shows important messages of this app as heads up.

Means:
- All MMS
- SMS if quickpopup is disabled

Other messages like storage or blacklist notifications are not important and will not show as heads up

PS:
- show always as expanded.....so user can directly interact with it

Adapted for LP

all other features are already back in Mms package

we still need to Materialize it

Change-Id: Id83633610c18ab4e380bfb910ea50e8bf7b61be6
Mms: switch to green

Change-Id: Ia9441cc6ba328238afebea8ae2e1818da5a9f8a3

Conflicts:

	res/values/colors.xml
Merge branch 'cm-12.0' of https://github.com/CyanogenMod/android_packages_apps_Mms-caf into cm-12.0