sqlshare-r: update the REST server URL

We finally got certificates and DNS information properly configured.
Use the correct DNS domain name in all applications so that SSL
certificate checks will pass.

Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu>
Merge pull request #3 from uwescience/dhalperi-update-rest-url

sqlshare-r: update the REST server URL