Python 3 compatibility: use print()
Allow pull requests between branches in the same repo
Python 3 compatibility in I/O and whelk dependency
Version 1.15
Add git-hub cat
Add missing PullRequestReviewCommentEvent type
Add missing event types to log
Change iter_repos to iter_user_repos

iter_repos changed in a backwards incompatible way in github3.py 0.6.0,
so now we use the correct function.
Find newly 'g-h create'd repositories
Some more cleanups in log
Add a security warning on first time use
Fix --issue bug when creating a pull-request
Version 1.16
Add git-hub render for markdown previews
UTF-8 encode the proposed commit message
List a users organizations
Add 'render' to README
Lots of fixes for private repos

- Default to SSH urls for private repos
- Make cloning and forking work properly
- pull-request warns if it cannot fetch from upstream
No coloring if we're not on a TTY
Add --no-forks to the repos command