"Not supported operating system version."

[stefnotch]

Issue description:

When attempting to open a project with Flax, the error message Not supported operating system version. pops up

Steps to reproduce:

1. Go to Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion (system registry)
2. Change the values of CurrentMajorVersionNumber and CurrentMinorVersionNumber to 0
3. Restart the PC
4. Attempt to open a Flax Project

Minimal reproduction project:

Flax version:

v0.3

[stefnotch]

Fix

Change the values in the system registry to the correct values.
CurrentMajorVersionNumber should be 6 or above.

If the values are not present in your system registry, adding

CurrentMajorVersionNumber DWORD = 6 
CurrentMinorVersionNumber DWORD = 3

to the registry should do the trick.

[stefnotch]

(Of course, if you're running Windows XP or below, Flax probably still won't run.)

[klukule]

And if anyone is reading this... the 6 and 3 depend on the version of Windows kernel, the numbers above are for Windows 8.1