Add CUSTOM_SETTINGS_MAPPINGS functionality to additional apps' settings.py
Report settings from additional applications to log file
Simplify code by passing in current module similarly to other modules
Add test for multi-line support in config load command
Add support for "config set --file FILE KEY"
Remove trailing whitespace from value set from file
Reinstate the syncmedia command

This commit reinstates the syncmedia command.  It is useful for people
who are deploying with other WSGI servers such as Gunicorn.
Merge pull request #23 from knabar/fix-11588-config-get

Fix "config get" bug
adding unit conversion filters, see #9058
applying length unit conversion filters to metadata panel
adding JS handler for length unit formatting
applying length unit formatting on the viewer
fixing minor issue in filter
updating annotation templates
adding time formatter
applying time formatter in viewer
renaming unit conversion filters
fixing timeformatter to allow display modulo in minutes and hours
fixing timeformat to allow to display modulo in minutes and hours
moving floating point to the filter