Glitches in each program; Doesn't effect current year result

[Amy-Xu]

• print line print list(train_x[maxes].columns.values) is throwing out an error in Rf_probs.py which is a part of WC and UC. So far it seems all results can be generated properly when commenting out this line.
• In WC folder, the input for arma.ipynb is missing.
• Need to delete 'h_seq_mean' and 'h_seq_sum' from dropped variable list in Rf_prob.ipynb in PR Housing: Debugged, documentation bettered, rf and logreg estimation s… #54 because they don't exist in the first place.

Along the line:

• Update README, brought up in Issue README seems to be outdated #64

[Amy-Xu]

Fixed in PR #72.