add method in jquery svc plugins

getUserById = (arg) ->
updateUserById = (arg) ->
addUser = (arg) ->
getAllGroup = ->
getGroupByName = (arg) ->
getGroupById = (arg) ->
addGroup = (arg) ->
userIsHungryInGroupId = (arg) ->
addUserInGroup = (arg) ->
js improve
Merge commit '40789360460fe4a240b716fa58be9d94e9cb6822'