Update vagrant environment for local development

* Update packages that can't run with vagrant's pty-less connection
* Use deadsnakes ppa for python3.3 installation to mitigate FTP slowness installing from source
* Update python cookbook
* Downgrade apt cookbook to one that supports the version of chef
Merge pull request #311 from proevo/vagrant_fixes

Update vagrant environment for local development
Fix postgresql locale and encoding.

The chef database cookbook was also updated
Merge pull request #318 from proevo/vagrant_fixes

Fix postgresql locale and encoding.
hack to fix admindocs bug
add comment about hack
Merge branch 'admindocs-hack'; see #317