eclipse project WITHOUT libs
relative lib paths
Merge branch 'Marc-master'
Adds Props file and data dir, fixes missing id

- Adds properties file
- Adds data directory
- Fixes missing id value in person object (removed final modifier)
added sample graph from lecture
ignore graph data files
Merge pull request #22 from MarcSpicker/master

Data ignoring
friends of friends with navigator
Merge pull request #23 from MarcSpicker/master

Friends of friends!
Looks fine, good sir!
transitively reachable and bridges with navigator
Merge pull request #24 from MarcSpicker/master

Transitively reachable and bridges.
handout fixes
Merge pull request #25 from MarcSpicker/master

Some fixes in the 2.1 Handout