Added a new switch: --repetitions_per_run that takes the number of repetitions that should be made per run. This number should divide the original one given in the nlogo file and will cause the N/n copies of a parameter combination to be created, each modified to repeat n times each. Where N is the original number of repetitions in the nlogo file, and n is the argument given with the switch. This is useful for also splitting repetitions into individual runs.

Updated version to 0.3 accordingly.

Updated README.