fixing junit report generation when folder doesn't exist.

[neuhoffm]

On windows when specifying a output folder the folder structure of the tests must manually be created. This change automatically creates the folder structure as needed.

fs.js:427
  return binding.open(pathModule._makeLong(path), stringToFlags(flags), mode);
                 ^
Error: ENOENT, no such file or directory 'C:\development\ui-tests\tests\Security\Login.xml'
    at Object.fs.openSync (fs.js:427:18)
    at Object.fs.writeFileSync (fs.js:966:15)
    at C:\development\code\Tests\node_modules\nightwatch\runner\reporters\junit.js:36:10
    at fs.js:266:14
    at Object.oncomplete (fs.js:107:15)

[beatfactor]

this is already taken care of by ensureDir in run.js so I'd rather fix the implementation there instead of introducing an external dependency.

[beatfactor]

in the end I used the module you have added and dropped ensureDir altogether. thanks!

[jtibble]

I'm also having this same issue in Windows 7, even after updating with 'npm update'. Running version 0.3.6 as verified with 'npm list'

[beatfactor]

try now, npm update to v0.3.7. seems to work for me on windows 7.

[jtibble]

This is fixed for me now with v0.3.7, but I'm seeing an issue with not-created-folders for screenshots as well. Is this possibly related?

-John