Add instructions for resolving dependencies

[cmungall]

$ mvn test
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building touchup 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The POM for org.bbop:golr-client:jar:0.2.1-SNAPSHOT is missing, no dependency information available
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.350s
[INFO] Finished at: Tue Dec 09 15:33:07 PST 2014
[INFO] Final Memory: 5M/245M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project touchup: Could not resolve dependencies for project org.bbop:touchup:jar:0.0.1-SNAPSHOT: Could not find artifact org.bbop:golr-client:jar:0.2.1-SNAPSHOT -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException