Added a makefile to the wattups thirdparty tool.
Fixed a bug in the hybrid betweenness algorithm that is specific to a corner case in which the source node has no neighbours
Merge pull request #10 from ahgharaibeh/fix-betweenness-bug

Fixed a bug in the hybrid betweenness centrality algorithm that caused the chain unit test to fail sometimes, the bug is related to a corner case in which the last source vertex has no neighbours to process.
Merge pull request #9 from ahgharaibeh/make-wattsup

Added a makefile to the wattups thirdparty tool.
Merge pull request #11 from ahgharaibeh/refactor-unittests

A new approach to defining the set of vanilla and hybrid implementations of an algorithm in the unit tests.
Updated PageRank unit tests to use the new approach for defining different test parameters.