added initial support for windows - still need to fix copying
replaced mkdirp and wrench with fs.extra
replaced unix-based commands with node-based alternatives
Merge remote branch 'upstream/master' into windows
removed async dependency
improved readability of asset copying conditions
Merge remote branch 'origin/master' into windows
Merge remote branch 'origin/master' into windows
Merge remote branch 'origin/master' into windows
fixed bug where an error would be thrown when copying files
replaced file paths with path.joins for full compatibility
Merge pull request #181 from neocotic/windows

Windows Support
Merge remote branch 'origin/master' into reusable-config