* [CORDA-446] Clean up other mentions of network map node and logic
* Rename AbstractNetworkMapService to NetworkMapService and remove the empty NetworkMapService
* fix build
* fix artemismessaging tests
* pr comments
* Document DemoBench's download link and the location of its log file.
* Document locations of DemoBench's runtime dependencies.
* Initial changes following review from Richard Brown.
* CORDA-307: Initial DemoBench documentation.
* CORDA-307: Update with review comments.
* CORDA-307: Update local installation instructions and download site.
* CORDA-307: Remove download link because it's not ready yet.
* CORDA-307: Mention that the node.conf files within the profiles can be edited by the user.
* CORDA-307: Add DemoBench section to the appendix.