oops... removed rangehttpserver by mistake

travis/flow_autoconfig.sh

@@ -20,7 +20,7 @@ pip3 install pyftpdlib paramiko net-tools
 # The dependencies that are installed using apt are only available to system default Python versions (e.g. Python 3.8 on Ubuntu 20.04)
 # If we are testing on a non-default Python version, we need to ensure these dependencies are still installed, so we use pip.
 # See issue #407, #445.
-for PKG in amqp appdirs dateparser flufl.lock humanize jsonpickle netifaces paho-mqtt psutil watchdog xattr ; do
+for PKG in amqp appdirs dateparser flufl.lock humanize jsonpickle netifaces paho-mqtt psutil rangehttpserver watchdog xattr ; do
     PKG_INSTALLED="`pip3 list | grep ${PKG}`"
     if [ "$?" == "0" ] ; then
         echo "$PKG is already installed"