Extended command-line functionality.

Since the software passed through series of accounting bugs and seems to be stable now, I've decided to focus more on code quality and overall software usability. The first step I've decided to do was aiming "smart" command line arguments handling. Googled a bit and stuck at first with Processing command line arguments in Java: Case closed but despite it was looking great, some of internals didn't work out. After googling a little bit more stuck with CLI package of the Jakarta/Apache commons project. This one worked out of the box. DONE.

H:\home\senin\projects\iclouds>java -jar build\jar\iclouds.jar
usage: java -jar iclouds.jar
-acclimit     specifies the accretion events limit
-config        specifies config file to use
-density      specifies the cloud density
-dhratio      specifies the D/H ratio
-help                print this message
-itrlimit     specifies the iterations limit
-logfile       use given file for log
-loggerfile    use given file for log
-loglevel     specifies the logger level [severe | fine | finer | finest]