Updated to support latest RexConnect 0.5.0 changes.

All 635u, 337/343i tests pass. Failures are related to Class creation.
Fixed integration test issue.

All 635u, 343i tests pass.
Improved support for new RexConnect options. Updated the batch operations.

All 635u, 343i tests pass.
Updated to RexConnectClient 0.5.0.0.

All 635u, 343i tests pass.
Updated to latest RexConnectClient and ServiceStack.Text packages.
Included updated project files for previous commit.
Implemented RexConnect caching support. Updated batch creation operations.

All 343i tests pass.
Fixed test setup to resolve unit test failures.

All 635u tests pass.