First version (0.1) of DeleteHistory for MediaWiki
Add description to README
Newer version compatible with MediaWiki 1.16
Released version 0.3 of DeleteHistory
New version 0.4 (MediaWiki 1.18 compatible)
Newer version 0.4.1 with security fixes
New version 0.5
Version 0.6 adding german language
0.7 release, compatible with MediaWiki 1.21

Detection of wfLoadExtensionMessages which was deprecated since 1.16
and now removed. It now not used anymore when MediaWiki version is
greater or equal to 1.16.
0.8 version fix minor issue and add Portuges language