Providing data about test coverage

There is a new folder in the download area: TestCoverage. Since this is Open Source everything should open so here are
- screenshots of result of examining the test coverage by cobertura (i.e. version_1.1.1_2013-01-05-1426.png for version 1.1.1)
- build logs (i.e. version_1.1.1_2013-01-05-1443.log) showing results of automatic test executed automatically as part of the build process

For versions 1.1-PRE-4 and 1.1-PRE-5 I don't have a build logfile.