Tag is done, moving on.

* STATUS

  Add 2.0.55, update 2.0.54.


* CHANGES

  Add section for 2.0.55


* include/ap_release.h
  
  (AP_SERVER_PATCHLEVEL): Bump to 55-dev.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.0.x@160951 13f79535-47bb-0310-9956-ffa450edef68