Cleans up the Vagrant setup.

This is an extensive redo of the Vagrant setup.

- drops vmware, rackspace and EC2 again
- uses official precice32 base image (https://vagrantcloud.com/hashicorp/precise32, 282MB currently)
- fixes a bunch of migration related things that are not needed or were broken
- use the official elasticseach puppet module (~plugin) for installing and setting up
- upgraded elasticsearch to 0.90.13 (what is used in prod)

This depends on #2426 since the kuma_update_feeds Puppet task would fail otherwise (due to Unicode issues in the current Hacks blog feed)

This fixes issue #2266, #2410 and #1916.

Refs #1910.