Fixed failing spec due to backbone upgrade

_listeners has been changed to _listeningTo.

[See diff](https://github.com/jashkenas/backbone/compare/1.0.0...1.1.0#diff-0d56d0d310de7ff18b3cef9c2f8f75dcL154)
Manually triggers configuration (verbose)
Added documentation for manually triggers configuration
build v1.2.0