Add fabric bundle for 'theo-server'

machines/theo-server/deploy/theo-common/upgrade-wrapper.sh.mako

@@ -0,0 +1,19 @@
+#!/bin/sh -e
+
+if [ "$1" = "--verbose" ]; then
+    VERBOSE='--verbose'
+    INVOKE_ARGS='--echo'
+else
+    VERBOSE=
+    INVOKE_ARGS=
+fi
+
+cd ${envroot}
+
+INVOKE="sudo -H -u rattail bin/invoke --collection=app/tasks $INVOKE_ARGS"
+
+# run upgrade task, as rattail user
+$INVOKE upgrade
+
+# restart web app
+sh -c 'sleep 10; supervisorctl restart ${safename}:${safename}_webmain' &