Merge pull request #9 from atdt/master

Fetch MediaWiki submodule from GitHub over SSH
Merge pull request #10 from atdt/master

Configure MediaWiki to use Memcached
Merge pull request #11 from atdt/ed4074a2e7f20019942472ea48a74bfc69608ee8

Use 64-bit box by default; add project logo
Update README.md
Update README.md (add logo and SSH instructions)
Update README.md
Update README.md

Remove travis-ci link.

It links to the Travis-CI build history of different repository.
There is no Travis-CI build for wikimedia/wmf-vagrant yet.
If/when there is, should probably use the API badge image as link
image instead.
As documented (http://www.virtualbox.org/manual/ch10.html#hwvirt), this now requires hardware virtualiztion for two separate reasons:

1. 64-bit guest
2. Multiple processors
Merge pull request #12 from mattflaschen/enable_hardware_virtualization

Note hardware virtualization requirements
Make require() of LocalSettings more robust
Fix memcached port to match modules/memcached/manifests/init.pp
Merge pull request #13 from mattflaschen/memcached_port

Fix memcached port to match modules/memcached/manifests/init.pp
Enable JavaScript testrunner.
Merge pull request #17 from mattflaschen/enable_javascript_testrunner

Enable JavaScript testrunner.
Add favicon.ico
Install php5-intl for PECL
Chown shared folder to vagrant:www-data, chmod 770.

Fixes #18