Removed assign by reference in path() 

rtrim() returns a string and the variable $path was being set to said string by reference. This is throws: Runtime Notice - Only variables should be assigned by reference
Variables.. der
Moar PSR-2 for libraries
PSR-2 change for main admin controller
PSR-2 improvements for settings module
Merge branch '2.3/develop' of git://github.com/pyrocms/pyrocms into 2.3/develop
Make widgets display happy
Merge pull request #3111 from keegan-lillo/2.3/develop

Removed assign by reference in path() in system/cms/plugins/theme.php
Added PYRO_DEBUG env variable
Avoids tying debug on/off to environment and on a properly configured server will help solve #3094.
Merge branch '2.3/develop' of git://github.com/pyrocms/pyrocms into 2.3/develop
Fixed up formatting for @RyanThompson.
Why
Merge branch 'refs/heads/2.3/develop' into 3.0/develop

Conflicts:
	system/cms/modules/settings/controllers/admin.php
	system/cms/modules/settings/details.php
	system/cms/modules/settings/libraries/Settings.php
	system/cms/modules/settings/views/admin/index.php