Adds additional bootstrap test for CASSANDRA-6648
Exclude consistently failing 2.0 dtests (except upgrade_t_v_t)
Adds a rewritten upgrade_through_versions test.

This version removes all thrift code.
This adds the ability to keep the ccm cluster data after test completion.
This adds the ability to filter out errors from the logs that are acceptable
for the given test.
Make configuration_test more patient
Make consistency_test patient
Make more dtests patient
Merge pull request #28 from riptano/cqlize_upgrade_test

Adds a rewritten upgrade_through_versions test.
Include 2.0 tests compression_chunk_length_test and test_wide_rows
Workaround for test-select exclude bug
Adds cqlsh interaction tests
Added assertion for cqlsh output.
cqlsh_tests a few more assertions.
Merge pull request #29 from riptano/cqlsh_tests

Adds cqlsh interaction tests
Merge branch 'master' into user_types