Accommodating changes to NodeId.
Fix for Clang warnings.
Merge remote-tracking branch 'origin/MAID-537' into routing_v2

Conflicts:
	src/maidsafe/routing/close_nodes_change.cc
	src/maidsafe/routing/firewall.cc
	src/maidsafe/routing/message_handler.cc
	src/maidsafe/routing/network.cc
	src/maidsafe/routing/network_statistics.cc
	src/maidsafe/routing/ping.h
	src/maidsafe/routing/response_handler.cc
	src/maidsafe/routing/routing_api.cc
	src/maidsafe/routing/routing_impl.cc
	src/maidsafe/routing/routing_table.cc
	src/maidsafe/routing/rpcs.cc
	src/maidsafe/routing/service.cc
	src/maidsafe/routing/tests/old/acknowledgement_test.cc
	src/maidsafe/routing/tests/old/cache_test.cc
	src/maidsafe/routing/tests/old/client_routing_table_test.cc
	src/maidsafe/routing/tests/old/close_nodes_change_test.cc
	src/maidsafe/routing/tests/old/message_handler_test.cc
	src/maidsafe/routing/tests/old/network_statistics_test.cc
	src/maidsafe/routing/tests/old/network_utils_test.cc
	src/maidsafe/routing/tests/old/public_key_holder_test.cc
	src/maidsafe/routing/tests/old/response_handler_test.cc
	src/maidsafe/routing/tests/old/routing_churn_test.cc
	src/maidsafe/routing/tests/old/routing_functional_test.cc
	src/maidsafe/routing/tests/old/routing_stand_alone_test.cc
	src/maidsafe/routing/tests/old/routing_table_func_test.cc
	src/maidsafe/routing/tests/old/services_test.cc
	src/maidsafe/routing/tests/routing_table_test.cc
	src/maidsafe/routing/tests/rpcs_test.cc
	src/maidsafe/routing/tests/test_utils.cc
	src/maidsafe/routing/tools/commands.cc
	src/maidsafe/routing/utils.cc