Add ability to disable Geddy models in configuration

This will allow model: false in geddy environment configuration
(config.js), which disables the importation of models on initiation.
Models are no longer defined in geddy.model['name'] and instead must be
required directly by controllers or logic that utilizes them.
Ability to disable Geddy models in configuration

This will allow model: false in geddy environment configuration
(config.js), which disables the importation of models on initiation.
Models are no longer defined in geddy.model['name'] and instead must be
required directly by controllers or logic that utilizes them.
Merge pull request #479 from kr1zmo/master

Add ability to disable Geddy models in configuration