Adding a #define for INDDGO_INFINITY (used in shortest path calcs)
Adding avg shortest path length calculation; updating djikstra stuff to use  INDDGO_INFINITY
Adding avg_path_length to graph_stats driver
cleaning up code
fixing icc error
output the input filename in the stats file
change \n to endl for better monitoring of progress during batch jobs
Add Petsc and Slepc options to build system
Initial version of eigen spectrum solver
Bug fixes.
spelling errors
sorted out merge of graph_stats.cpp
in-progress changes for dijkstra-heap
Merge branch 'upstream' into kcore-merge
Clean up new k-core code
Power law fitting added to GraphProperties
create a self tester for eigen solver, requres a define at compile time
Merge branches 'josh-upstream' and 'eigen_spectrum'
Power Law fitting added to GraphProperties and compiles. Added a gtest, but currently doesn't work.
Merge pull request #28 from MattBBaker/master

Adding eigenspectrum from Matt