Updated AppModelBuilder by using commands to mock a connected user, some musics and active peers. activePeer.id = 0 is for local usage, to test if source of messages is correctly set.

A very small fix comes with this update :
- Categories.findByCategoryId method : use .equals instead of == and skip others when found
Updated AppModelBuilder by using commands to mock a connected user, some musics and active peers. activePeer.id = 0 is for local usage, to test if source of messages is correctly set.

A very small fix comes with this update :
- Categories.findByCategoryId method : use .equals instead of == and skip others when found