Rebuild Cache Access
This module adds a "Rebuild Cache" button to the admin toolbar, allowing users with a specific permission to manually clear all site caches. This is useful when roles other than site administrators need the ability to flush caches.
This module provides a new permission: rebuild cache access. Every role with this permission set will have a nice and big "Rebuild Cache" admin toolbar button. Clicking this button simply fires drupal_flush_all_caches(). That's all.
Note: Normally it should be sufficient that all relevant caches are flushed automatically when changes to content are made. Nevertheless in real world it sometimes may be necessary to have other roles than the ones with administer site configuration permission being able to rebuild the caches.