sync-engine-shared - Further simplify
sync-engine-shared - Invert checks
SYNC-1253 Copy from JSONFactoryImpl
SYNC-1253 Deconstruct and strip {"Exception": } portion, this will be readded when it goes through the portal's serializeThrowable
SYNC-1253 Apply
sync-engine-shared - Apply SYNC-1253
sync-engine-shared - All JSON exceptions in master are now returned with SC_INTERNAL_SERVER_ERROR
sync-engine-shared - Master no longer throws RuntimeException