Adding ./idea directory to .gitignore
Adding Node class
Adding basical tree class (without the body of compute method)
User allowed to retrieve the parent's node
Adding method to retrieve the root node of a graph

+ adding comments
Adding methods to Node in order to know if a node is a leaf and to get it's children if not
[unstable] - Adding initial algorithm
Fix some bugs with behaviour while settings parent/child relation
Code simplifications and bugs fixing
Added function of data loading to reduce amount of code
Merge branch 'develop-adding-builder-implementation-of-the-main-algorithm' into develop-adding-builder
Added basical file test
Merge branch 'develop-adding-builder' into develop
Added license file
Merge branch 'develop-adding-license' into develop
Added namespace LeftRightTreeTraversal

+ move into subfolder
Update test file to use the namespace
Merge branch 'develop-adding-namespace' into develop
Keys of generated hash are now configurable
No conflicts possible with config parameters