Implemented support for RexConnect 0.5.0 changes.
Added tests for request/command options.

All 122 tests pass. See inthefabric/RexConnect#35 and inthefabric/RexConnect#37.
Added initial support for the Query.cache argument.
Resolved various test failures. Improved query-creation code.

The request/command option tests were causing the entire test suite to fail in Mono. The error was "RemotingException: Unix transport error". Removing the enum array TestCase parameters resolved the issue.
Added Query.cache related tests.

All 126 tests pass.
Implemented initial caching and QueryC-conversion functionality.
Added tests for the new caching functionality.

125/135 tests pass.
Fixed ResponseResult bugs causing test failures.

All 135 tests pass.
Added caching tests for RexConnContext.

All 137 tests pass.
Added request/command caching tests.

All 145 tests pass.
Added remaining cache-related tests.

All 147 tests pass.