This entry is mostly just a summary or a recap if you will of a few posts ( and 2 pages of replies and comments on the Drupal site Drupal Bug Page ).
If you are experiencing the following error messages on a Drupal 7 site
Update failed! See the log below for more information. Your site is still in maintenance mode.tokenError installing / updating File Transfer failed, reason: Cannot remove directory /homepages/24/d451754577/htdocs/profiles/openenterprise/modules/token/..filefield_sourcesError installing / updating File Transfer failed, reason: Cannot remove directory /homepages/24/d451754577/htdocs/profiles/openenterprise/modules/filefield_sources/..ctoolsError installing / updating File Transfer failed, reason: Cannot remove directory /homepages/24/d451754577/htdocs/profiles/openenterprise/modules/ctools/..
There appears to be a bug in the Drupal code that did not appear on PHP 5.3 ( as PHP 5.3 itself has a bug that inhibits the Drupal Bug ).
The fix has already been proposed, and should wind up in the Drupal core at some point in the future, but if like me, you are facing this issue now, the fix is rather simple.
Now you should be able to update your modules.