dumpngdb can print all edge distances
removed debug print statements from graph_create_smallworld.c
new program, cslice, allows subgraph extraction by node coordinates
local efficiency added to ccnet
ccnet outputs local smallworld index, in the middle of working on regional efficiency
cgen has support for loading in simple text files
average local efficiency, and regional efficiency
cleaned up stats_efficiency code to make use of new stats_sub_eficiency function
creg calculates regional efficiency
cextract now has option to relabel, or retain original node labels