Version 1.5.0-dev.4.18

svn merge -c 37570 https://dart.googlecode.com/svn/branches/bleeding_edge trunk

Apply https://codereview.chromium.org/342613003/, manually copying in dart/editor/android/com.google.dart.editor.mobile.connection.service.apk

git-svn-id: http://dart.googlecode.com/svn/trunk@37576 260f80e4-7a28-3924-810f-c04153c831b5
diff --git a/tools/VERSION b/tools/VERSION
index 2e55310..3526ecd 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -28,4 +28,4 @@
 MINOR 5
 PATCH 0
 PRERELEASE 4
-PRERELEASE_PATCH 17
+PRERELEASE_PATCH 18