Rename the module structures so that the exported symbol matches

the file name, and it is easier to automate the installation
process (generating LoadModule directives from the module filenames).

Next step is to remove the 4th argument to the APACHE_MODULE macro
completely and require people to use the matching names, and to
reduce the LoadModule directive to 1 argument.... Objections?


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88189 13f79535-47bb-0310-9956-ffa450edef68