Fix the bloody HSQLDB could not be started msg
Add regression test about ModuleOptions style
Some more script tests using processors.
Twitter stream tests.
upgraded to spring 4.0 release
Add more complex filter tests, including labels.

These have failing assertions which are currently commented out.
Add missing TEST_DIR in script tests
removed explicit xsd versions
XD-1173 Break test with labels.

Modifiy testTappingWithLabels to reproduce the
duplicate message issue and comment it out.
Add support to optionally ignore test failures (for Sonar)

* Add support to ignore test failures by providing a command line property `ignoreTestFailures`
* e.g. execute: `./gradlew clean build -P ignoreFailures=true`
* if not set, the property will default to `false`