Refactor and modernize exception handling code.
Adopt RXThreadRunLoopRun in the welcome window controller.
Use RX_INLINE instead of CF_INLINE to break dependency on CF.
Import NSError in RXErrorMacros.
Remove unnecessary break statements.
Import missing headers in BZFSUtilities.
Use common buffer macros header in VirtualRingBuffer.
Update and fix all the test targets.