Adjust compile target, suppress some warnings.
Remove dead code.
Change windows dead pool poll time to match Linux.
Merge branch 'master' of https://github.com/brettwooldridge/NuProcess

# By brettwooldridge
# Via brettwooldridge
* 'master' of https://github.com/brettwooldridge/NuProcess:
  Update README.md
  Minor updates
  Update README.md
  Update README.md
  Update README.md
  Update README.md