This matches the format in the migration files and makes the type_to_sql
override redundant.
The only wart we are left with is that since there are no true UUID
types in MySQL we'll have to assume that binary(16) columns are UUIDs.
In practice this is probably fine as the MySQL adapter doesn't map any
other types to binary.
- Switch to binary 16 for UUID keys
- Remove AccountScopedRecord base class, all model use binary uuids now
- Fix the search sql to serialize uuids properly
- Patch the MySQL schema dumper to output binary lengths
Donal McBreen