Copied code from the bash framework and add json based config file support

band.bash

@@ -1,6 +1,19 @@
 #!/bin/bash
 # Requires vnstat to be running on target system
 
+set -eo pipefail # you cann add u into -eo, but it drives me nuts so I won't
+
+if [[ -n "${BASHD_DEBUG}" ]]; then # a inevitability that this will be used
+    set -x
+fi
+
+trap cleanup EXIT # A little more robust cleanup
+
+cleanup() {
+    # We can clean up any temp files or what nots, but for now a place holder
+    true
+}
+
 # initial values
 mtotal=1000 # monthly total in GB for high end cut off
 dmax=40 # daily max usage value