API support for querying config categories.

Either return a list of distinct categories, or all configs under a
certain category
Find category configs only when $category is not null.  API
Revert "Find category configs only when $category is not null.  API"

This reverts commit efbbcadc7dad9aa52a7aab0483546eab48840ae6.
Find category configs only when $category is not null.  API
Return possible source types ni DB via API
Add component for dumping Config table as HTML
Do not display the "hidden" config category
Show a list of Config Key:Value pairs
Add view for Configs Edit
Slight refactor of ConfigParser Component.  Needs more work.
Don't print out the Config string to the file system.
Rework the ConfigParser component.
Initial commit of Logs MVC
Merge branch 'api-updates'