[maven-release-plugin] prepare release adam-parent-0.12.1
[maven-release-plugin] prepare for next development iteration
[ADAM-326] Adding a 5-second retry on the HttpRangedByteAccess test.

The AMPLab webserver that is used in the test occasionally hangs?  If so, we catch
the HttpHostConnectException that the Apache lib throws, wait five seconds, and try
once more.