Merge pull request #1 from lamblin/master

Follow-up to first report
Merge pull request #2 from lamblin/master

Add code and result for ordering accuracy experiments
New version of the site web.
remove image not used.
move some image to amazon S3.
Merge branch 'master' of github.com:lisa-lab/pings
Moved last image to S3.
Updated the leaderboard template.
fix leaderboard template.
re-add images removed by mistake.

they are used in the leaderboard.
move leaderboard template images to amazon.
Add missing images.
Update the contributor to the ping project.
update an image.
Remove duplicate from data. split train/valid/test according to date

This should avoid having the same examples (or really close ones, like
pings between the same IPs that are close in time) both in training and
testing error, as was previously the case (leading to overfitting).
Report ordering accuracy normalized by source IP

Also code to plot TRAIN heat map
Add new training objectives (L1 norm, Kendall's tau)

L1 works best.
Also use more recent data
Small update to readme
Add function to process csv files from ic2012 to pkl