Added UFW_EXTRA_PORTS, Updated start script shell, Added python2.7

UFW_EXTRA_PORTS Allows for exposing of ports when binding to the image for the vpn functionality. Accepts comma seperated list.

Changed from /bin/sh to /bin/bash. If you got bash, why use busybox? Plus busybox doesn't allow for advanced string manipulations.

Added python2.7 and pysqlite2. torrentToMedia from the nzbToMedia package needs python2.7.

Dockerfile.armhf

@@ -102,6 +102,7 @@ ENV OPENVPN_USERNAME=**None** \
     TRANSMISSION_WATCH_DIR_ENABLED=true \
     TRANSMISSION_HOME=/data/transmission-home \
     ENABLE_UFW=false \
+    UFW_EXTRA_PORTS= \
     TRANSMISSION_WEB_UI=\
     PUID=\
     PGID=\