code: function(behaviorName, creator) {
  			if (typeof behaviors[behaviorName] !== 'undefined') {
  				error(new Error('Behavior ' + behaviorName + ' has already been added.'));
  				return this;
  			}
  
  			behaviors[behaviorName] = {
  				creator: creator,
  				instance: null
  			};
  
  			return this;
  		}
docs: ---------------------------------------------------------------------- Behavior-Related ---------------------------------------------------------------------- 
  Registers a new behavior
  @param {string} behaviorName Unique behavior identifier
  @param {Function} creator Factory function used to generate the behavior
  @returns {Box.Application} The application object.
  @throws {Error} If a behavior has already been added