Added /roster unread preferrence

closes #712

themes/boothj5

@@ -96,6 +96,7 @@ roster.offline=true
 roster.empty=false
 roster.by=group
 roster.order=presence
+roster.unread=before
 roster.count=true
 roster.priority=false
 roster.size=25
@@ -111,7 +112,7 @@ roster.presence.indent=-1
 roster.status=true
 roster.rooms=true
 roster.rooms.order=name
-roster.rooms.unread=after
+roster.rooms.unread=before
 occupants=true
 occupants.size=15
 occupants.jid=false

themes/complex

@@ -23,6 +23,7 @@ roster.offline=true
 roster.empty=true
 roster.by=presence
 roster.order=presence
+roster.unread=after
 roster.count=true
 roster.priority=true
 roster.size=25

themes/simple

@@ -22,6 +22,7 @@ roster.offline=false
 roster.empty=false
 roster.by=none
 roster.order=presence
+roster.unread=off
 roster.count=false
 roster.priority=false
 roster.size=25