Fix #8

This is to be sure that this is the network that links elements

Not compatible with the add checking : we can't add an entity not empty to a network

fix #1

Add getShortDescription and getLongDescription to AbstractMet4JApplication

Main now returns shorter description.

Finish hotfix:chargeInNotes

Finish hotfix:fbcWithoutUnit

this fix bias in transition probability weighting, doubling probability of reversibles reaction edges

+ add test

Can be done from provided number of conserved atoms, indexes of conserved atom, or from parsing provided AAM as RxnSmiles

# Conflicts:
#	README.md
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/computation/algo/RandomWalk.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/computation/analyze/GraphLocalMeasure.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/computation/analyze/GraphMeasure.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/computation/analyze/ScopeCompounds.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/computation/analyze/centrality/EigenVectorCentrality.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/computation/connect/KShortestPath.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/computation/connect/ShortestPath.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/computation/connect/weighting/SimilarityWeightPolicy.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/computation/connect/weighting/WeightsFromFile.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/computation/transform/EdgeMerger.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/computation/transform/GraphOperation.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/computation/utils/ComputeAdjacencyMatrix.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/computation/utils/RankUtils.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/BioGraph.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/BioPathUtils.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/GraphFactory.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/bipartite/BipartiteEdge.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/bipartite/BipartiteEdgeFactory.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/compound/CompoundGraph.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/compound/ReactionEdgeFactory.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/compressed/CompressedGraph.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/compressed/PathEdge.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/compressed/PathEdgeFactory.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/parallel/MergedGraph.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/parallel/MetaEdge.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/parallel/MetaEdgeFactory.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/pathway/PathwayGraph.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/pathway/PathwayGraphEdge.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/pathway/PathwayGraphEdgeFactory.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/reaction/CompoundEdgeFactory.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/core/reaction/ReactionGraph.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/io/BioGraph2Sif.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/io/BioGraph2XGMML.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/io/Bionetwork2BioGraph.java
#	met4j-graph/src/main/java/fr/inrae/toulouse/metexplore/met4j_graph/io/ExportGraph.java

Unexpected behavior regarding starting nodes incident edges, lower centrality than expected. Centrality from transient matrix is fine. Further investigation needed regarding expected number of walks for terminal nodes

+ remove duplicated code