[UIMA-5303] - selectPreceding fails to skip over annotations
- fix bug by skipping over overlapping annotations
- added two additional unit tests for the situation
- split existing unit test for following/preceding into two 

git-svn-id: https://svn.apache.org/repos/asf/uima/uimafit/trunk@1783015 13f79535-47bb-0310-9956-ffa450edef68
2 files changed