Client/Server explanations

[AlBaker]

API examples use the embedded server for ease of running the example. Feedback from new users suggest it's not clear how to run a client/server setup, what becomes optional in the examples, and how to form a proper connection string.

This ticket is to update the examples with a clear path for new users to run an example in client/server.

Couple things we can do:

• Annotate the examples with comments on how to change the code to run client/server
• Add a link to http://docs.stardog.com/#_how_to_make_a_connection_string
• Add an example that is just a simple client/server connect/query