Complete the support of cyclic FeatureType graphs.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1633323 13f79535-47bb-0310-9956-ffa450edef68
Avoid usage of some deprecated metadata methods.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1633642 13f79535-47bb-0310-9956-ffa450edef68
Merge from the JDK8 branch:
  - complete the support of cyclic feature associations
  - avoid usage of some deprecated metadata methods


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK7@1633643 13f79535-47bb-0310-9956-ffa450edef68