Merge pull request #11 from joelvh/master

Added info about the `tag` option
require neither the default x-editable.yml (it's not in the gem anyway), nor the user-supplied config/x-editable (but use it if it does exist)
Merge pull request #12 from joelvh/master

Add a blank value to an empty array to make sure the param is submitted
Merge pull request #14 from bteitelb/master

require neither the default x-editable.yml (it's not in the gem anyway),...
Dummy app
Optional config generator
Examples
Bump version
Merge pull request #1 from werein/master

Pull in origin changes