force running scripts in bash, as it's not the default shell on Ubuntu (which is what Travis runs)

riot/install.sh

@@ -1,7 +1,8 @@
+#!/bin/bash
 RIOT_BRANCH=master
 
 BASE_DIR=$(readlink -f $(dirname $0))
-if [[ -d $BASE_DIR/riot-web ]]; then
+if [ -d $BASE_DIR/riot-web ]; then
 	echo "riot is already installed"
 	exit
 fi

riot/start.sh

@@ -1,3 +1,4 @@
+#!/bin/bash
 PORT=8080
 echo "running riot on http://localhost:$PORT..."
 BASE_DIR=$(readlink -f $(dirname $0))

riot/stop.sh

@@ -1,3 +1,4 @@
+#!/bin/bash
 BASE_DIR=$(readlink -f $(dirname $0))
 cd $BASE_DIR
 PIDFILE=riot.pid