Add `R_and_framework.zip` (ignored by default)
Update R.app
Remove Xcode blog post: somehow it doesn't work, still have to figure out why
Merge branch 'master' of godatadriven.com:/home/git/gddblog
Delete R_and_framework also from my local branch.

It comes from the recursive merge strategy.
Add latex.py pelican plugin
First part of coffee blog post written