added some stuff
Merge branch 'master' of https://github.com/mariano54/coinalyze

* 'master' of https://github.com/mariano54/coinalyze:
  added avg cc:
commented out WCC slow.
small change
Merge branch 'master' of https://github.com/mariano54/coinalyze

* 'master' of https://github.com/mariano54/coinalyze:
  optimized add_to_network