1. A method comprising: receiving a connection from a client machine that is executing an application customizable by configuration information; determining that the application has not been customized by the configuration information; and transmitting the configuration information to the client machine, the application being configured by the configuration information to include a category structure for the application in response to the transmitting of the configuration information, the transmitting of the configuration information being performed by a processor of a machine in response to the determining that the application has not been customized by the configuration information.