PROTON-210: fixed release.sh to create single tarball from top level. Not yet fully tested

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/branches/jni-binding@1441067 13f79535-47bb-0310-9956-ffa450edef68
PROTON-194: fixed typo in README

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/branches/jni-binding@1441068 13f79535-47bb-0310-9956-ffa450edef68