[Erp5-dev] New activity distribution user interface

[Pelletier Vincent]

Hi.

I commited yesterday a new user interface for activity distribution
configuration, along with some internal modifications.

New features are:

- activity node auto-registration
- presence of a list of available nodes for activities
- selection of the balancer node in a list of availabe nodes
- display of the current node identifier

This wil make it easier to add/remove a big list of processing nodes, and will
make it obvious when the nodes are missconfigured (when their identifier is
127.0.0.1).