Merge pull request #20 from jlothian/master

Change classnames, update and re-enable gtest unit testing, fix documentation generation via doxygen in Makefiles.  Fixes several make dependency issues and other small bugs.
Merge pull request #21 from jlothian/819da3520d2b650f51f1921876125f1e280d7b1f

Simplify I/O
Merge pull request #25 from spowers/master

Adding parallelism to eccentricity, ecc_dist and expansion
Fix up macros so that C++11 compilers can use them.
Fix parmetis library link commands in Makefiles
Merge branches 'gcc47' and 'parmetis_make'
Merge pull request #26 from MattBBaker/master

Parallel build fixups and compiler fixup
Adding new gconvert utility for conversions between file types; removing old X2Y utilities
Merge branch 'master' of github.com:jlothian/INDDGO-survey
Merge pull request #25 from jlothian/master

Adding recent feature work and bugfixes, support for OpenMP
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
Adding function to calculate k-core number of each node and overall graph degeneracy.
Merge branch 'upstream' into kcore-merge
Clean up new k-core code