The following changes were made:

* Modified Makefile to work with /bin/sh
  * Added REPO to Makefile.client and Makefile.server
  * Modified usher-client and usher-server to use /bin/sh

SNAP/usher-client

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 set -e
 

SNAP/usher-server

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 set -e