fix(init fails on Windows): Splitting directory names should use `path.sep`.

Node handles the Unix/Windows directory separators but if you are doing path decomposition
by hand then you should use path.sep.
fix(CLI arguments incorrectly parsed): remove command line prefixed args.

In Windows this could fail when using Cygwin.

`'c:\\Program Files\\nodejs\\node.exe'`

and

`'c:\\Users\\USER_NAME\\AppData\\Roaming\\npm\\node_modules\\jasmine\\bin\\jasmine.js'`

being the file names that were meant to be filtered out.

Simply easier to splice the args array.
Merge pull request #6 from briandipalma/master

Split paths with path.sep and parse arguments in a more compatible way.