Fixes PHPUnit Multisite tests and sets up grunt build-realease to run all PHPUnit tests when building release package (Single & Multisite.) Props netweb. See #2542.

git-svn-id: https://bbpress.svn.wordpress.org/trunk@5287 9866e705-20ec-0310-96e7-cbb4277adcfb
Add XML output logging for PHPUnit tests. Props netweb. See #2542.



git-svn-id: https://bbpress.svn.wordpress.org/trunk@5288 9866e705-20ec-0310-96e7-cbb4277adcfb
More grunt updates:

* Add RTL, minified and `SCRIPT_DEBUG` support for bbPress admin CSS.
* Add RTL, minified and `SCRIPT_DEBUG` support for bbPress default theme-compat CSS.
* RTL bbPress CSS is now compiled with cssjanus. (`bbpress-rtl.css` file removed)
* Props netweb. See #2542.

git-svn-id: https://bbpress.svn.wordpress.org/trunk@5289 9866e705-20ec-0310-96e7-cbb4277adcfb