added implementation of get_all_cliques together with helper method greater_neighbors
added implementation of get_all_cliques together with helper method greater_neighbors
move helper function into get_all_cliques
format docstring
change output format of discovered cliques
do not place every node in a tuble
start clique testing
resolve merge conflict
adding dispersion as a centrality measure
updated dispersion to use built in nx methods and set comprehension
incorporating dschult set method suggestions... with significant increase in speed
refactored to allow optional u, v... added suggestions for normalizations...
Switch eigenvector_centrality_numpy to use sparse matrix solver
Addresses #969
Add JSON format documentation
Merge pull request #1045 from hagberg/json-doc

Add JSON format documentation
Merge pull request #1044 from hagberg/centrality-sparse

Use sparse matrix solver for eigenvector centrality

Fixes #969
Addresses #1048.
Node labels must be within double quotes. Addresses #1048.

Tuple labels are now converted to strings:
   (1,2) -->  "(1,2)"
Add omitted quote=True option to escape(). #1048.
Add unit test for #1048.