Standaridise the identity names of Alice, Bob and Charlie, notary, map service, etc. in order
to ensure consistency across the code base and reduce number of places that have to be changed
to introduce proper X.500 names.
Move Alice, Bob & Charlie identities into the utilities package so they can be used in demos
Observable.subscribe().unsubscribe() dance to free up the MQ resources server-side.
* remove an unused import
* implement a FlowHandle<Transaction>.finalize method
* Rename finalize() to discard() - remove the collection and run discard individually
* Remove unused imports
* Observable.notUsed helper function
* Tweaks to comments
* FlowHandle implements AutoClosable
* Resolving conflicts and move notUsed to RPC module
* Copy Observable.notUsed in core module.
* delete discard method
* CORDA-305: Refactor CordaRPCClient into :client:rpc module
* CORDA-305: Remove the Kotlin test framework from the artifacts.
* CORDA-305: Migrate serialisation whitelist into node-api module.
* CORDA-305: Clean up unused RPC observables.
* CORDA-305: Add :client:rpc module to documentation tasks.
* CORDA-305: Include :finance into :client:rpc for its serialisable classes.
* CORDA-305: Move test classes into the correct directory.
* CORDA-305: Migrate :finance dependency from :client:rpc into DemoBench.
* CORDA-305: Update wording of TODO about handling Observables.
