Merge pull request #5 from jmachowinski/fixes-through-scan-build

Fixes through scan build
Merge pull request #6 from jmachowinski/try-to-fix-testsuite

Allow running the test suite(s) without installing typelib first.
various: remove the "dyncall", its tests and mentions in text-files

I hopefully got everything... looked for:

- git grep functions
- git grep DYNCALL
- git grep dyncall
- git grep test_ruby

still compiles, and all test-suits still pass (tested with the fixed
"try-to-fix-testsuite" branch).

Signed-off-by: Martin Zenzes <martin.zenzes@dfki.de>