Bump version
Bump database version
Include database bump in upgrade script
Rename upgrade script
Fix bugs in upgrade script.

Handle the case when there are colons in server_name. Handle http
exceptions more gracefully.
Make failure to run appropraite upgrade scripts more helpful.
Bump UPGRADES and CHANGES
Do run all deltas up to missing delta 10
Fix upgrade script to run all the missing deltas.
Fix typo where we thought a list was a dict
Enable rate limiting for all events
Change upgrade script to not check hashes or signatures
Merge branch 'release-v0.6.0' into develop