Added: Menu to header.
Added: New option for App_Deployments, an environment can now be simply updated to a specfic version of a deployment.
Fixed: Update deployment
Added: Validation to app_deployment to make sure only one version can be associated with any given app_deployment and application.
Added: Validation to environment to make sure only one name can be associated with any given environment and application.
Added: Presence valiation to the name and path attributes of environments.
Added: Presence and uniqueness validation to the name attribute of application
Added: Presence valiation to the repository attribute of application..
Added: Presence valiation to the version attribute of AppDeployment.