Fix submodules.

Unfortunately changing a github username or repository name breaks
submodules in some contexts. We should find a way to work around this,
but for now I'll just fix them.
Reverse the intermediate image sizes logic

We want to disable intermediate images if Jetpack is enabled.
Retire Debug Bar in favor of Query Monitor

In my testing, turning off Debug Bar lowers page load times
in wp-admin from ~7.5s to ~2.5s. We're using Query Monitor
now anyway, which provides most of the information in Debug Bar.

See #328
Grab $blog_id from get_current_blog_id() if null
Merge pull request #338 from xwp/feature/fix_wpcom_vip_quickstart_fix_domain

Fix wpcom_vip_quickstart_fix_domain to provide value for null $blog_id
Force Github plugins to update

It doesn't really matter if there's already a repo present,
we want to update the github plugins to whatever is the
latest on Github.

Fixes #278
Fix undefined batcache variable during phpunit execution
Restore wptests MySQL user password to wptests per wp-tests-config.php
Merge pull request #340 from xwp/feature/wptests-user-password

Restore wptests MySQL user password to wptests per wp-tests-config.php
Merge pull request #339 from xwp/feature/phpunit-batcache-undefined-var

Fix undefined batcache variable during phpunit execution
Change environment test to check for 'physical'

Instead of checking against different types of virtual
hardware, we can test against 'physical', which should
mean we're not in Vagrant. If this doesn't work, we can
also set a custom fact in the Vagrantfile.
Add quickstart_env_is_staging()

Add an environment variable when Quickstart is provisioned
depending on the current environment. We can use that
in PHP to for our `quickstart_env_is_staging()` function.

Fixes #346
Change environment test to check for 'physical'

Instead of checking against different types of virtual
hardware, we can test against 'physical', which should
mean we're not in Vagrant. If this doesn't work, we can
also set a custom fact in the Vagrantfile.
Merge pull request #347 from Automattic/issue-346

Add `quickstart_env_is_staging()`
Only set WP_DEBUG locally

In a staging environment, we don't want WP_DEBUG enabled.

See #343
Remove phpinfo

Relevant info is in Query Monitor
Clean up wp-config
Define pub/twentyfourteen as WP_DEFAULT_THEME for unit tests
Merge pull request #353 from xwp/feature/default-theme

Define pub/twentyfourteen as WP_DEFAULT_THEME for unit tests
Fix invalid crontab entries

Every 30 hours isn't a valid entry