quick commit to send debug out when worker is sitting idle in edge case during iterations on IR DBN
setup new DBN IR tests for jagged and uneven split edge cases
updated the canonical IR DBN yarn props example
unit test for DBN IR where we have uneven splits and one split is sub batch size, covering another runtime edge case
added a yarn based command line tool to evaluate generated DBN models on local filesystem or HDFS
tweaked some params to the dbn model evaluator