Fix trailing comma which prevents Homer from starting up.

[systemcrash]

Produces the rather confusing and counter-intuitive error message

No configuration file loaded: While parsing config: invalid character '}' looking for beginning of object key string

panic: DB configuration file not found

etc

[lmangani]

Thanks for the fix! This is actually correct on behalf of the JSON parser, } is an invalid character after , so the error message seems accurate, perhaps we need a generic one telling the user the JSON configuration is invalid.

[systemcrash]

the question was which } was invalid ;) my highlighter didn't pick up on the floating comma....

[systemcrash]

Should this have triggered a rebuild? The webapp/homer image currently won't start otherwise. Maybe weekends are time off for the builds :)