Turning in (encrypted) software part of exercise sheet 3. Added my own public key to the root of the repository.
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Sheet 2 updated with exercises 2 and 3
Merge pull request #20 from vrede/master

vrede: Some updates in sheets 2 and 3