The package-db flag can now correctly handles relative paths
Fix BuildTestSuiteDetailedV09 on case-insensitive file systems

Fixes #1297 (again). Compiled object files are deleted before the detailed test
suite library is built. This is a workaround until the underlying cause is
known.
Merge pull request #1310 from ttuegel/test-build-detailed

Fix BuildTestSuiteDetailedV09 on case-insensitive file systems