#1 adjust adjacency_list take copy of name string, (so it exists also later)
create new Class Graphs which contains a map of Graph classes and a key (the name of the graph), the Graphs class can unmarshall a csv file and save the content in the own object
removed deserialized method from ast interface, moved code from main in Graphs class TODO: check node savings in graph which is saved in the Graphs object
#3 adjust addNode method, if a node already exists the reference is replaced otherwise the node is added
adjust adjacency_list start method returns not more the first element from the vector but rather the node with the id 1
Merge branch 'master' of https://github.com/ccebinger/SWPSoSe14