ICC and taskq works

We successfully installed intel complier(ICC) and it works. We compiled several examples using taskq and they work as expected.
We modified our rulecache program using taskq and it improved average update time. For the case with 1802 rules and 4 threads, we parallelized the bottleneck recursive function and the average updated time reduced from 0.007 to 0.004.
We will run it on Niagara to see the difference. We will also try other number of threads. Another direction could be parallelize other functions as well.