JacksonRiver/springboard_modules — pull request #501 by benclark (2014-04-28 22:17:06+00:00)
Title: Sustainers: attempts < 3 fails to return rows where attempts is NULL

MySQL doesn't typecast NULL to integer 0, so `attempts < 3` fails to return rows where attempts is NULL.

Unlikely to come up in daily use, but migration scripts could use NULL here instead of 0 and cause sustainers to not queue up properly.