PROTON-190: Enable verbose/debugging output for release.sh

Also added in the missing option "r" to the definition list.

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/trunk@1428368 13f79535-47bb-0310-9956-ffa450edef68
PROTON-190: Adds building the Ruby gem artifact.

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/trunk@1428369 13f79535-47bb-0310-9956-ffa450edef68