Experiment with hyper graph, added edges 'treerelation' and 'calls'
Addes 'uses' relation to hyper graph (for now only used variables are shown)
WIP - Hypergraph - added 'uses' relation between functions and variables
Removed debug prints
Removed debug print
Edited info flow calculations and added proper relations to hyper graph
fix nill node when creating calls relations
Added relation for LOC metrics to hypergraph
Added relation 'executes' with indices 'statement' to all nodes, used to see what statements are directly used by block of code
Global hypergraph object
Hypergraph relation 'calls' changed to 'executes' (executor, executepoint, [statement|function])
Edit relation 'tree relation', now there is only one edge for each parent (more children are connected to single edge->parent)
Edit LOC metric (set correctly for ALL nodes), added definer - defines - function relation, executes function is now also available for functions without name
Added 'declared' 'variable' relatin for Block tags and function nodes
Added relation for groups edge (grouping of statements)
Add few simple comments
Merge branch 'develop'

This merges the last commit of Ivan Simko.