Add windows affinity API functions
Fix broken winapi usage.
Add code to subprocess_windows to actually use it.
Add flag (-a) to runexe to specify process affinity.
Fix typo.
Fix flow oversight in subprocess job creation.
Don't forget to set flags to enable process affinity
Add undocumented -no-job flag to runexe.
Merge branch 'master' of github.com:contester/runlib