* Fix bug in demobench. Explorer didn't show correctly location of a node.
There was no nearestCity override in config.
* Remove nearestCity from node configuration. Now information about the location is always taken from
node's legal name. If not present - exception on node startup.
* Add X500Name.locationOrNull that soft fails when location is not in X500 name. Address PR comments.
* Remove unused imports.
This is an intermediary step to introducing X500Names in all Party instances, which adds:
* Party constructor which accepts X500Name and then converts it to string.
* startNode() function which takes in X500Name instead of String
* Numerous legal name fixes to use full distinguished names
* Non-ssl artemis acceptor for RPC connection. (#271)
* New non-ssl acceptor in artemis server for RPC connection.
* Rename artemisAddress with messagingAddress
Rename artemisAddress with messagingAddress so that the node configuration file properties match
the code variable names.
Rename artemisPort to messagingPort in Gradle configuration to match node configuration naming.
* Add rpcPort configuration option for Gradle
* Update docs to reflect changes to RPC port configuration
* Renumber ports in example CorDapp to match numbering used elsewhere
* Restructure upgrade guide
* added config file checks on corda startup to make the upgrade path a bit smoother.
