Move EventAllocationType enum to samoa-api utils
Rename {set/get}NumberThreads to {set/get}NumberOfThreads in ThreadsEngine
Number of threads and source delay are provided from cmd line. Source delay is an option for Task.
Previous commit misses out this testcase
a short javadoc comment for ThreadsEventRunnable class
Move the delay implementation from topology to entranceprocessor
Very first draft. Not working implementation with samza