Bump to sbt 0.13.7

adriaanm · adriaanm · commit 0154ff816890 · 2014-12-03T18:09:02.000-08:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.1
+sbt.version=0.13.7
