darkstardesign/phpThumbsUp — pull request #19 by Majkl578 (2013-10-18 10:02:40+00:00)
Title: Call header_remove only when the function exists (it's 5.3+)

Probably the only thing blocking usage on PHP 5.2 (yes, it sucks, but i was forced to use shared webhosting w/o 5.3+).