[bugfix] commons-lang is now required by Java admin client.
Merge branch 'develop' of https://github.com/eXist-db/exist into develop
[feature] Implement IndexWorker.scanIndex method for structural index, so util:index-keys will return proper statistics.
Merge pull request #154 from wolfgangmm/develop

Implement missing index scan method for structural index
Merge branch 'develop' of https://github.com/eXist-db/exist into develop