update release.sh

build/release.sh

@@ -1,6 +1,3 @@
-git checkout master
-git merge dev
-
 #!/usr/bin/env sh
 set -e
 echo "Enter release version: "
@@ -19,11 +16,8 @@ then
   git commit -am "[release] $VERSION"
 
   # publish
-  git push origin master
+  git push origin 1.x
   git push origin refs/tags/v$VERSION
-  git checkout dev
-  git rebase master
-  git push origin dev
 
   npm publish
 fi