[UIMA-5644] Upgrade to UIMA 2.10.2

- Update documentation to mention that UIMA 2.10.2 is required
- Set the version to 2.4.0 in documentation since there were some additions to public API


git-svn-id: https://svn.apache.org/repos/asf/uima/uimafit/trunk@1814871 13f79535-47bb-0310-9956-ffa450edef68
2 files changed