STORM-487 Let bin/storm compatible with Windows

Related issue : https://issues.apache.org/jira/browse/STORM-487

I modified bin/storm to be compatible with Windows.
bin/storm script didn't take care of OS specific chars, so I've modified it.

I've tested it with Windows - installed 0.9.2 release and modified bin/storm file, and run dev_zookeeper, nimbus, supervisor, ui, list, jar (with storm-starter), classpath.
(Seems like it doesn't need cygwin at a glimpse.)

ps. IntelliJ said many lines in storm script violates PEP8.
I wish to fix it, but it could hide original diff, so I will fix it by other PR after merge this in.