[UIMA-4151] skip call to build process trace when disabled

git-svn-id: https://svn.apache.org/repos/asf/uima/uimaj/trunk@1645482 13f79535-47bb-0310-9956-ffa450edef68
[UIMA-4152] new tests showing surprising behavior of find and contains methods of FSIndex

git-svn-id: https://svn.apache.org/repos/asf/uima/uimaj/trunk@1645485 13f79535-47bb-0310-9956-ffa450edef68