WARNING: db:test:clone is deprecated.

I generated a new Rails 4.1 app, with guard-migrate version 1.0.4.  Once I add a migration, I get the following warning:

    WARNING: db:test:clone is deprecated. The Rails test helper now maintains your test schema automatically, see the release notes for details.

Modifying my guard file to read:

    guard :migrate, test_clone: false do

Makes the warning go away.

I'd suggest that for Rails 4.1+ the test_clone option be defaulted to false.

Questions:
1)  Do you agree?

2)  I attempted to fix it (see commit), but it looks like Rails is not loaded at the time this code is run.  The following could work, but it seems heavy...

    Gem::Version.new(`rails version`.gsub(/[^.\d]/, '')) <= Gem::Version.new("4.1.0")

3)  Should I modify the tests (spec/guard/migrate_spec.rb:89) for this change?  Are those the right tests to modify?  

4) Another possibility would  be changing the default value to false for version 1.1.0.