Update travis-ci config to run unit tests and show test results in ant output 

- Added a build target "unittest-no-junit-report" to run unit tests and not create a junit report, but instead to show test run results in the ant output stream. 
- Modified .travis.yml to 
   - change directory to core before doing the build and unittest
   - use unittest-no-junit-report instead of unittest
- Modified application startup to set the base translator the same way the guice startup does, instead of defaulting to debug translator - which causes 16 junit tests to fail.  Fixes issue #72 (and old closed issue #17)