October 2, 2006 (2.1.4)
 - spam.module
    o Bug fix: Allow deletion of custom filters.
    o Bug fix: Redirect to correct page when deleting URL filters.
    o Bug fix: Remove hack from 4.6, use comment api to detect and filter
               new comments while they're being previewed.
    o Bug fix: Redirect to correct page when manually scanning comments.
    o Bug fix: Support filtering of forum content type.
    o Code cleanup: Use '#required' from FormsAPI rather than ugly kludge.
    o Code cleanup: Return $output instead of printing it.

July 15, 2006 (2.1.3)
 - spam.module
    o Bug fix: Redirect to proper page when marking comments spam/notspam.
    o Bug fix: Fix links in emails about new spam content.
    o Bug fix: Proper redirect when manually scanning with custom filters.
 - spam.install
    o Bug fix: Fix spam_custom table data to work with postgresql. 
 - trackback_blackhole.module
    o Bug fix: Be sure arg() exists, or emulate it.

June 22, 2006 (2.1.2)
 - spam.module
    o Bug fix: change local copy of $comment to not rewrite in display.
 - spam.install
    o Feature: Add support for postgresql.

May 26, 2006
 - spam.module
    o restore ability to add custom filters
    o use Drupal coding standards for { after function name
    o restore INSTALL.TXT and README.txt
 
 - trackback_blackhole.module
    o copied from 4.6 spam module, no changes necessary

May 10, 2006
 - First 4.7 release, 2.1.0-pre1
