Fixing redirect uri to match new port number.
Merge pull request #3 from ryansch/fix-redirect

Fixing redirect uri to match new port number.
Update .gitnore and remove .rvmrc
Demonstrate setting of component allocations

In order to trigger the component selection, add a "component_id"
key to your config.yml file that corresponds to a valid ID on your
site
Make the component ID actually come from config
Update README: Credential generation is now done in Chargify