Week2

Git part took some time even though there wasn't really anything new with it.
Dependency injection wasn't new for me either though I didn't know it's fancy name.
Spring seemes reasonable once you used Annotations, but with XML it's seems to be a hassle.
Not keen on it's naming policy (FileSystemXmlApplicationContext really?).
I cringed a little when I saw how Singletons where implemented in example: Not thread safe and should really use Enums for them...