Varying-Vagrant-Vagrants/VVV

PHP 7.0.x has now replaced PHP 5.5.x. See #844.
Update PHPUnit to the latest stable 5.6.x version. See #1004
Xdebug 2.4.0 is now built from source to provide PHP 7.0.x support. See #869.
Disable Xdebug during provisioning so that Composer can operate at normal speed. See #971
Improve the package installation check to avoid false positives. See #840.
Allow vvv-nginx.conf to be located in a project's subdirectory. See #852.
Install the latest version of git via its PPA. See #872
Assign names to pre, custom, default, and post provisioners to make --provision-with possible. See #806
Install nvm to provide access to multiple NodeJS versions. See #863
Provide the NodeJS 6.x LTS release by default. See #1007
Switch to NodeSource for NodeJS packages. See #779
Move query_cache_* config for MySQL to its proper place in the [mysqld] section. See #925
Allow WordPress core unit test database configuration to be supplied with environment variables. See #846.
Use the correct command wp core update when updating WordPress with WP-CLI. See #958
Remove the core.svn.wordpress.org WordPress trunk checkout from default provisioning. develop.svn.wordpress.org remains. See #921
Checkout and initialize the develop.svn.wordpress.org repository in a temporary (non-shared) directory. This addresses issues with a possible race condition during NPM package installation on a shared drive. See #969