Added "type : nonSecure" option to generateUUID command. The type indicates the algorithm used for UUID generation. Unfortunately, the "secure" algorithm (which continues to be the default) can be comparatively slow - if it uses /dev/random on Linux, it can block waiting for sufficient entropy to build up. In contrast, the new "nonSecure" algorithm never blocks and is much faster. The "nonSecure" algorithm uses a secure random seed but is otherwise deterministic, though it is one of the [strongest uniform pseudo-random number generators known so far|http://commons.apache.org/proper/commons-math/javadocs/api-3.2/org/apache/commons/math3/random/Well19937c.html].