CopyTask can now accept loaded tilelive objects.
Stricter check for tilelive object in CopyTask.
Remove unused arguments.
Treat /Tile|Grid does not exist/ errors as skips.
Fix case issue.
More lenient validation of north and south bbox values.

This now matches the validation in mbtiles.
Merge pull request #55 from mapbox/bbox-90

More lenient validation of north and south bbox values.
Update changelog.
4.3.2
Remove uncaughException handler.
4.3.3
Remove dependency on generic-pool as it isn't actually used
Merge pull request #56 from tomhughes/master

Remove dependency on generic-pool
Merge branch 'master' into copy