updated .shipyard.yml to branch 5.3

.shipyard.yml

@@ -1,19 +1,21 @@
----
 name: monster-ui-application-fax
-base_branch: origin/master
+custom_files: null
 exposure: private
-metapackage:
-  - name: meta-monster-ui
-    branch: master
-    package: monster-ui-application-fax
-    type: required
+base_branch: origin/5.3
 base_core: monster-ui
 template: monster-ui-application.spec.tmpl
 package:
   centos7:
     name: monster-ui-application-fax
     app_name: fax
-    license: "MPL 2.0"
+    license: 'MPL 2.0'
     group: Productivity/Telephony
-    url: http://www.2600hz.org/
+    url: 'http://www.2600hz.org/'
     vendor: 2600Hz
+metapackage:
+  -
+    name: meta-monster-ui
+    branch: '5.3'
+    package: monster-ui-application-fax
+    type: required
+dependencies: null