Remove commons-validator (form-builder no longer uses it)
(cherry picked from commit 4bd2eda0e84f4dc459380243b22e4ad204c8ed27)
Centralize versions in parent: jsr250-api, karaf.assemblies.features, seam-spring-core
(cherry picked from commit 63fff1b3370793a96d0c868fbd712f135cfee84d)