Initial parallel processing capabilities
Returned ability to interpret a comma separated port list
Parallel processing
Changed default behavior to serial
Updated readme to include parallel processing example
Merge branch 'parallel'

Added the ability to scan multiple networks in parallel
There are a few issues with how this is being done at the moment:
    IPy merges consecutive CIDR blocks into one larger CIDR block which then uses the same process
    A CIDR block equates to a process

At some point, the queue should be changed to hold individual IP addresses in order to more evenly spread the processing among workers in the pool
Merge pull request #2 from kylekoza/master

Added ability to scan CIDR blocks in parallel