Extension:Pdf Export/Version history

Here is the entire version history for Pdf Export:
 * 2.4 - 2010-09-08 - parameters & background-image option added
 * 2.3 - 2010-01-28 - tmp directory is obsolete
 * 2.2.2 - 2009-11-10 - Output of file name fixed
 * 2.2.1 - 2009-10-19
 * 2.2 - 2009-04-10
 * 2.1.1 - 2009-03-30
 * 2.1 - 2009-03-09
 * 2.0.1 - 2008-12-15
 * 2.0 - 2008-11-04