Ref fucntion for co dev with Guillaume
compute of distance between curent node and RPS node + Vivaldi architecture schema
Closest nodes first raw version
Add .travis.yml to continious integration server
compiling bug fix
Changes asked in the pull request
Solve compiling bug
Changes from comments
Change type to seq
Replace Seq by Iterable in the messages
Merge pull request #3 from BeyondTheClouds/iterablePower

Replace Seq by Iterable in the messages
Get rid of the double loop
Merge pull request #4 from BeyondTheClouds/quickFix

Get rid of the double loop
Merge pull request #2 from BeyondTheClouds/closeNodes

Je merge avec la bénédiction de Cyprien.