Creating Code of Conduct

This is a draft version of a code of conduct. This is based on PDX Python's
code of conduct and also based on Geek Feminisim's wiki. While this commit is
to Nodeschool, this code of conduct should apply to multiple meetups.
Updated text and added in Ohana.js/Nodeschool.
Added Twitter Handle
Added in "no jerks" clause

Added in a "no jerks" clause as recommended by @jaywon. It's open to
for a bit more refinement.
Merge branch 'code-of-conduct' of github.com:nodeschool/honolulu into code-of-conduct

* 'code-of-conduct' of github.com:nodeschool/honolulu:
  Added Twitter Handle
Merge pull request #5 from nodeschool/code-of-conduct

Code of Conduct DRAFT