Fixing boost_graph not wrapped in ifdef and moving betweenness variable outside ifdef region in header.
Fixing allocation of array with variable size by replacing with vector and resize/dynamic allocation
fixes for building with metis and no openmp
Merge branch 'fix-kcores'
Merge remote branch 'upstream/master'
Merge pull request #27 from jlothian/fix-kcores

fixes for building with metis and no openmp
Merge branch 'master' of github.com:jlothian/INDDGO-survey
Merging upstream
Fixing METIS+ no OpenMP compilation
Merging powerlaw and delta hyperbolicity code from Schrock
Fix compile issue in graph_stats
Added some conditional defines to enable gtest and boost to co-exist in relative peace and tranquility
Fixing GraphReaderTest - gtest apparently really likes pointers to be passed around instead of objects
Build C++ tests using CXXFLAGS instead of CFLAGS
Adding unit tests for clustering, based on results from networx
Cleaning up code
Fixing makefile to rebuild tests if libgraphd.a changed
Merge remote branch 'upstream/master'