refactor: cleaning up shared client context and scope specs
Get collection names for a database
Get all collections for a database
Check collection equality
Check database equality
Fix 1.8 error in database parsing
Remove multi-line dot chaining test.

This style is not valid in Ruby 1.8 - it won't parse.
minor: use consistent style with %w for arrays of strings
minor: adding filters and extra reports for simplecov
minor: remove unused code
minor: Scope tests: #batch_size + #batch_size!
minor: better tests for query opts