README: note on contributions.
Clean up for merge into master.

Doing this on a separate branch because those hacky things seem like
they'll be useful again at some point.
Merge pull request #5 from BigDataMalaysia/tr-asset-parse-cleanup

Count asset types.
CSV viewcount stats 17 JUL 2014.
rank_visit_count: refactor for easy CSV output.
Revert "Clean up for merge into master."

This reverts commit c481f7e6ea6bd2a50d7065a98406d19a17fdc911.
Offline dev source dataset1; it has TWO download assets