Fix gulp on Windows

[gmist]

I tested it on Windows XP and everything seems to be working, but unfortunately I'm unable to check it on other versions of Windows (Vista/7/8/10).

[davidstackio]

If it helps, I was able to install and run run.py -s locally on Windows 7 (v1.8)

[lipis]

@dhstack You should try to run gulp with this PR.. that's what is all about

[davidstackio]

So I cloned gmist:fix_gulp_win and ran run.py -s and got this error on Windows 7:

[davidstackio]

I think it has to do with the spaces in the directory path (Program Files). Using quotes could fix it: https://stackoverflow.com/questions/6376113/spaces-problem-in-cmd

I thought that python's os module took care of all of this though.

[davidstackio]

Also, as you requested, I ran gulp and got this:

[gmist]

@dhstack thank you. I fixed (I hope) problem with spaces in path, please try it again. For gulp you need to install gulp globally.

[davidstackio]

@gmist Got gulp installed globally - thanks.

Still wasn't working. This did the trick though:
'"%s"' % os.path.join(find_gae_path(), 'dev_appserver.py'),

(notice the extra ' quotes)

[davidstackio]

@gmist This is an aside, and due to me still learning the ins an outs of github, but how could I have pushed that change directly?

[gmist]

`'"%s"'`` +1 sure that's what I wanted to do :)

"could I have pushed that change directly?"
You can push code directly only in your repositories or in an organization repository if you have write permissions. Also you can create pull request for any public repository.

[davidstackio]

@gmist Thanks for the links.

So could I have created a pull request on this? Or because it already is a pull request, the way I did it -propose my change in a comment - was best?

[gmist]

I have already fix it (5a59511), therefore PR do not needed. I think that for small remarks/issues is better to use comments for a specific line of code.

[lipis]

Yes.. commenting lines is much better for PRs instead of a new PR.. I'm back from vacations next week and will follow up :)

[lipis]

os.path.exists(gae_path)

[lipis]

This one looks ready.. can anyone verify if works ok on different Windows to verify? (@gmist will you squash it..?)