manifest: Point at cm-13.0

Change-Id: I23bf3fce358fef2c4a756fa70ded0c74f1835968
diff --git a/default.xml b/default.xml
index 437e88e..cc06e8a 100644
--- a/default.xml
+++ b/default.xml
@@ -4,7 +4,7 @@
   <remote  name="aosp"
            fetch="https://android.googlesource.com"
            review="android-review.googlesource.com"
-           revision="refs/tags/android-5.1.1_r23" />
+           revision="refs/tags/android-6.0.0_r1" />
 
   <remote  name="github"
            fetch=".."
@@ -13,7 +13,7 @@
   <remote  name="private"
            fetch="ssh://git@github.com" />
 
-  <default revision="refs/heads/cm-12.1"
+  <default revision="refs/heads/cm-13.0"
            remote="github"
            sync-c="true"
            sync-j="4" />