Had trouble installing the 3rd party 'psutil' package on Webfaction servers.

Bug came into play when someone changes the case of a Sensor ID
but makes no other changes to the characters.

small revision

added URL exceptions to allow data POST

Added setting to all non-Staff access to site.  Removed settings that are OK at their default values.

Also moved Logout button in footer to same row as exsiting footer.

Also show or hide Logout button as appropriate.

replaed xyz with bmsapp_header which I need to allow in exceptions

required package for lockdown to work

overrides default form with additional detail and instruction

duplicate of base.html but removed organization from view as it shows in base

added logout button to base page

Added lockdown attributes for configuration, all start commented out