data structures and basic unit tests
Naive Importer almost ready.
Now changing Graph.nodes to HashMap.
Changed UndirectedGraph.nodes to HashMap and id to String.
Added getNode(id).
Naive import should work now.
Added the osm files for Zweibruecken.
Also some small cleanup.
remove lon/lat from NodeCpp
added .metaNodes to EdgeCpp
now imports only nodes with degree > 2
all matching OsmNodes are connected to the edge as .metaNodes =
List<OsmNode>
added index.html with leaflet.js (without the api-key).
added a sample overlay.js
added HTML exporter
cleab up and moved OsmNode to its own class
changed getDistance to Spherical Law of Cosines
Merge pull request #1 from tbachcern/edges_with_meta

Edges with meta
fixed some Import tests
Commit: 
- "simple algorithms": matching, isdeadEnd, findEulerianCircle,
isConnected
- Junit-Tests for matching, isConnected, getPathBetween, connectCircle,
findeulerianCircle
First visualization draft using dummy graph
beautified unit tests
removed unnecessary types
interface for graph returns a collection again for the getnodes method
fixed eclipse warnings
Merge branch 'master' of https://github.com/tbachcern/cpp.git
Getter von node ersetzt durch iterator.next()