(TWILL-95) Example version number fix and zookeeper test timeout
- Update version number in the examples
  - This fixes `mvn package` on a machine that hasn't had twill installed
    on it.
- bump up another zookeeper timeout

Signed-off-by: Terence Yim <chtyim@apache.org>
Increase test timeout and alter Travis setting to show test output
Added more hadoop version to the travis test.