Always go through the Helper object to load config
Move config.js into the Shout home directory by default
Change config command to edit config.js in the Shout home directory

Also, copy config.js to the Shout home directory if it's not already
there.
Don't sudo when editing the config
Merge pull request #201 from VShell/config-outside-source

Refactor to move config to Shout home by default