correct ChangeLog.txt version number for latest release

Atlassian FishEye Subversion analysis with Crucible code review. (Version:2.10.2 Build:20130225131147 2013-02-25) - Administration - Page generated 2013-04-28 10:09 -0400

Crucible: Open Source License registered to Norganna's AddOns.

Version 2.10.4 is available.