Initial fork of Varying Vagrant Vagrants

WME started out as a full fork of Varying Vagrant Vagrants, but later transitioned to being only the provisions scripts. At that point, VVV's commit history was squashed to this commit, so that contributor stats would be accurate.
Merge basic customizations from https://github.com/iandunn/VVV

This mostly switches the focus of the repository from being a generic environment to providing configuration for
specific websites, and tweaks some basic configuration.
Update README and TODO
Rename default vhost to wp-meta.dev
Rename default vhost to wp-meta.dev
Update README and dashboard
Add wordcamp.dev config
Track wordcamp.dev WordPress config files.
Add sample WordCamp.dev data
Add custom MySQL init script
Move site-specific WordPress config into subdirectory for better organization.
Allow site-specific provision scripts in provision/sites in addition to www.

The provision directory is a more logical location for these than the www directory, and this keeps the www directory from becoming cluttered.
Fix whitespace tab vs space inconsistency
Add line break and align path indentation
Fixing line breaks
Copy mu-plugins after wp-content has been created.

Otherwise the directory doesn't exist.
Add developer.wordpress.dev

There are still a few TODOs, but the basics are there.
Use dashboard-custom.php instead of modifying VVV index.php.
Add jobs.wordpress.dev
Add more parser posts to developer.wordpress.dev database