Remove DDL time check of index sizes, catch and wrap at runtime
Fix sort key growing
Stray import
merge nathanlws: Remove DDL time check of index sizes

Merge pull request #1123 from nathanlws/sql-layer/remove-index-size-validation
https://github.com/FoundationDB/sql-layer/pull/1123
New definitions of typed AIS objects.
More of that.
Checkpoint.
Get fixed size for field def early and save.