#480044 by JohnAlbin: sites/all/ should take precedence over profiles when searching for modules and themes.

- Patch #473652 by Damien Tournoud, catch: removed unneeded loop from file_get_mimetype() and further clean-up.

- Patch #439236 by alex_b: field_attach_create_bundle() undefined when creating a content type on hook_update().

#422116 by JohnAlbin: Kill off theme_engine_name prefix for theme functions to assist with theme inheritance and TX (Themer eXperience).

    * that the Recent Poll block outputs the block layout rather than page layout.
    * that users can vote on polls via the block
    * that the 'older polls' link in the recent poll block works.
    * that node is output correctly, including 'Cancel your vote' button appearing
    * that only users with appropriate permission can cancel their votes
    * that the 'poll' page contains the correct data.
    * that polls can be edited
    * the opening / closing of polls - ensuring block doesn't appear when poll is closed, and neither do the 'Vote' / 'Cancel your vote' buttons, and that the poll status is updated correctly on 'poll' page.

#473080 by chx: Fix bug where switching themes would result in zero blocks (including content area). with tests.

#473080 by chx: Fix bug in block page access callback showing tabs that should not appear. (with tests)