improve view management: - we can pass a negative view index, in this case we count from the end of the list of view - before creating/changing the view representation, we remove the previous one and reinitialize the node visibility - each time we save a view, it creates a new one at the end of the list - "restore" view loads the last view of the list

mongodb.host.name = localhost
mongodb.host.port = 27017
mongodb.db.name = renkan

user.admin.name = admin
#user.admin.password = admin
user.admin.password = 8c6976e5b5410415bde908bd4dee15dfb167a9c873fc4bb8a81f6f2ab448a918

renkan.pagination.size = 2
renkan.coweb.debug = false
renkan.coweb.websocket = true