1.2.13

This is the first release after the transition to GitHub. It includes a number of bug fixes:

• %s in output (#345)
• kmlwriter.py crashes (#346)
• Duplication of stop_name and stop_desc should be a warning, not an error. (#347)
• Make tests work with hash seed randomization turned on (#352)
• Add validation support for trips.txt wheelchair_accessible column. (#358)
• Add support for 'bikes_allowed' fields (#372)
• Validator does not recognize 'updated' column definitions: wheelchair_boarding and trip_short_name (#377)
• Unzipping cannot handle language encoding bit properly (#379)

In addition, the merge.py utility now does a "new version available?" check similar to feed_validator.py.