Adding permissions to search index

Conflicts:
	system/cms/modules/users/controllers/admin.php
	system/cms/themes/pyrocms/build/less/application/admin.less
	system/cms/themes/pyrocms/css/build.css
	system/cms/themes/pyrocms/js/admin/filter.js
	system/cms/themes/pyrocms/views/admin/layouts/default.php