You can clone with
HTTPS or Subversion.
Currently, the .json view for modlog is less than useful.
Its missing things such as the full removal string, the mod name, and a timestamp. It has mod_id and thing_id, but turning these into data requires an additional request
Although technically this bug tracker is for tracking confirmed bugs. Please submit to /r/bugs if you have not already.
Some attributes such as mod name and timestamp were added in 173135d.