Mms: Use a more familiar 'mark as read' icon

The existing 'mark as read' icon is a bit confusing and doesn't make clear
where it is for. This commit replaces the existing cion with the read icon
which is used in Email and Gmail.

Before: http://goo.gl/GXKfj
After:  http://goo.gl/RTEwa

Change-Id: I3c7ae7aa6173e29e687a7e0d564b2d54fcc61a51
Mms: Dutch translations

Change-Id: I3a056c3e66f700317049dfb612db8d6760f7bb89
Merge commit 'android-4.2.2_r1' into mr1.1-staging

Conflicts:
	res/values-de/strings.xml
	res/values-pl/strings.xml
	res/values-zh-rCN/strings.xml
	res/xml/preferences.xml
	src/com/android/mms/transaction/MessagingNotification.java
	src/com/android/mms/ui/MessagingPreferenceActivity.java

Change-Id: If2cad66bbe0470ee86162cbe3fc5466056a2cd52
Merge branch 'mr1.1-staging' of git://github.com/CyanogenMod/android_packages_apps_Mms into mr1.1-staging

Conflicts:
	res/values-nl/strings.xml

Change-Id: Id65053e62c81061bdc1f0399fca2e10f89d22e12
Merge "Mms: Use a more familiar 'mark as read' icon" into cm-10.1
Merge branch 'cm-10.1' of git://github.com/CyanogenMod/android_packages_apps_Mms into jellybean