Added all extra tests
First round of test fixes
Figured out the accepted DateType formats
Add LocalStrategy for schema export purposes
Handle race condition on building token map

If the token map is built prior to keyspace information being
processed, the token map will not have any knowledge of
keyspaces.  This change causes the token map to be rebuilt
whenever keyspaces change.

Relates to pull request #36
Merge branch 'master' into code-coverage-merge
Simpler replica calculation tests
Update changelog
Bump version to 1.0.0-beta3
Make post-release version 1.0.0-beta3+
Update API docs for 1.0.0-beta3
Allow user to specify values for blob columns using bytearray.

This way the client also work with Cassandra 2.0.
Allow user to pass 'cql_version' attribute to Cluster constructor.
use assertIsInstance instead of assertTrue(isinstance())
Remove 'system' workaround
Clear pending bug comments
Add tests for new blob writing functionality.
Use a better way of detecting Cassandra and CQL version.

Instead of using cql_version Cluster constructor argument query the "system.local" table.
Split version detection functionality into a BaseTestCase class.

This seems like a useful functionality so make it more easier to re-use this
information.
Support nicer BoundStatement printing