CLC-4057 New service to perform health check on background job processing
CLC-4102 Decouple proxy exception handling from Cacheable
CLC-4057 Be more selective about reporting LATE check-ins; add write_cache helper method
CLC-4057 Emphasize BackgroundJobsCheck's dependency on the cache.servers setting
Merge pull request #2990 from raydavis/raywip

CLC-4057 Perform health check on background job processing