General resync from my machine to Github
Added a panel data generator – work in progress
Panel data generator – activity variables

All the network variables are missing
Added a file of panel data

Only activity variables. No network variables yet present
Added cleaned-up and partially processed data and source code to generate it.

Beginning of refactoring: I added a new program that reads the raw
data, rearranges into three lists of dicts (one for users, one for
posts, one for comments) and savers them to .csv files. I also added
the files.

Adds a procedure that discovers users who wrote posts but not comments
(which tranlsates into nodes with some in-degree but zero out-degree)
Merge pull request #1 from dragontrainer/Alberto

Pull this