mod_rewrite gifting procedure, step 2:

- remove the copyright
- cleanup: remove the Apache 1.2.1 related #ifdefs
- updated the CHANGES file for recent updates


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@78655 13f79535-47bb-0310-9956-ffa450edef68