open is not a valid command in cygwin, added a check to use cygstart instead if building in cygwin
updated from upstream jacebrowning/template-python
Merge remote-tracking branch 'upstream/master' into cygwin-fix
corrected indents in makefile that were spaces.
changed 103-105 indentation back to spaces
Merge pull request #6 from joshfriend/cygwin-fix

Use `cygstart` instead of `open` in cygwin