Adjusted configuration for emit frequency, which has to be known at object construction
Now the application argument is required
Included more information about the files being read by the spout
Added a base prefix for the configuration keys
Included the sink in the spike-detection application, filled the basic configurations
Included a configuration prefix for generic bolts (used by more than one application or in multiple instances)
Fixed minor type mismatches in the log-processing application
Added a null sink