release 1.0.0 to bintray.com
removed xproc-maven-plugin from dependencies

...to be able to make a release (xproc-maven-plugin is a snapshot dependency).
[maven-release-plugin] prepare release xprocspec-aggregator-1.0.0
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] rollback the release of xprocspec-aggregator-1.0.0
[maven-release-plugin] prepare release 1.0.0
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] rollback the release of 1.0.0
created release profile
[maven-release-plugin] prepare release 1.0.0