Removed unused imports
Added junit-report library to export JUnit XML reports for Jenkins to indicate the build as failed when test(s) failes
Included android junit report library in the readme
Changed instrumentation runner to JUnitReportTestRunner
Added test.runner property to ant.properties to use the JUnitReportTestRunner instead of the default one
Added Ant target fetch-test-report to download the junit xml test report from the device