[enh] "Routing and multicasting" modularized

app/lib/computation/permanentProver.js

app/lib/entity/configuration.js

app/lib/streams/router.js

app/modules/crawler.js

app/modules/daemon.js

app/modules/peersignal.js

app/modules/prover.js

app/modules/router.js

index.js

server.js

test/integration/branches2.js

test/integration/forwarding.js

test/integration/peer-outdated.js

test/integration/peerings.js

test/integration/peers-same-pubkey.js

test/integration/start_generate_blocks.js

test/integration/tools/node.js

test/integration/tools/toolbox.js

test/integration/v1.0-modules-api.js