* review receive with timeout.

* verify bookkeeping version.

* add several metrics
  - message exchanges : number/volume of sent/received data/ctrl messages

* add options -j/-J : minimum number of iterations?

* add a variant to (not) change neighbor load information at send?

* implement loba_* algorithms (start with some trivial one)

* for automatic process topology,
   -> implement some random initial distribution of load

* add synchronized mode

* translate README file?