minor: formatting and organized impoarts

git-svn-id: https://svn.apache.org/repos/asf/stanbol/branches/release-0.12@1593487 13f79535-47bb-0310-9956-ffa450edef68
STANBOL-1324: updated code to avoid usage of deprecated API after clerezza dependency version upgrade

git-svn-id: https://svn.apache.org/repos/asf/stanbol/branches/release-0.12@1593488 13f79535-47bb-0310-9956-ffa450edef68
STANBOL-488: implemetnation of chain scoped enhancement properties for 0.12.1; Chain scoped Enhancement Properties are stored as RDF within the execution paln. Added Helper Methods for doing so to the ExecutionPlanHelper. EnhancementProperties do now consider chain scoped properties. Adapted the helper methods in the EnhancementEngineHelper accodringly. Added enhancement properties support to the list, weighted and graph chain.

git-svn-id: https://svn.apache.org/repos/asf/stanbol/branches/release-0.12@1593490 13f79535-47bb-0310-9956-ffa450edef68