We would like to implement the submodule approach to syncing spec tests (as first demonstrated by the PHP team), but need to address some roadblocks in our own spec tests first.

These roadblocks include:

1.  Modified specs. The specs have (in some cases) been modified by the team. For example, we've modified the timeouts in some of the CSOT specs in order to accommodate timing differences between the Ruby driver and other drivers.
2. Custom specs. The Ruby driver has implemented some tests as custom specs, not present in the general specifications repository.

There may be other blocking issues as well. Before we move to pulling in the spec tests via a submodule, we need to make sure we aren't going to lose modifications and customizations that we've added.