Reenables part of the BEH_API_Remove test

Rest of the tests don't currently apply for the new rudp API.
Re-adds BEH_API_SimpleSend test
Re-adds FUNC_API_ManyTimesSimpleSend test

Though it seems it runs much slower than with the previous api.
Re-adds FUNC_API_Send test
Re-adds FUNC_API_ParallelSend test
Re-adds test FUNC_API_ParallelReceive
Re-adds FUNC_API_ConcurrentGetAvailablesAndAdds

And part of BEH_API_BootstrapTimeout
Minor cleanup + uncommenting some code
Merge remote-tracking branch 'inetic/routing_v2' into routing_v2