convenience methods for test preparation
Prevent table collisions in specs

Some of the various Post classes have an incompatible table structures
which causes failures if you try to synchronize all the record classes
at the same time. This gives all the test models a unique table name so
they don't step on each other.
explicit keyspace existence predicates
ignore anonymous record classes in spec prep

Rbx tests fail because some classes exist that don't have table
names. We can safely ignore these when syncing schema for specs.
Uniqify even more table names
drop chainable
remove superfluous blank line
desingletonize SpecSupport::Preparation
correct misspelling of `model_dirs`
Remove duplicate method
Use bind variables for keyspace existence test.
Default autoloaded models dir to `app/models`
fix typo in model dir default; improve usage
Adjust example wording for new reality
New contributor
Update cql-rb to version 2
Add Appraisals for major versions of cql-rb
Merge pull request #122 from outoftime/cql-rb-2

Update cql-rb to version 2
Allow Rubinius builds to fail

The interpreter randomly crashes on Travis
Bump version