apache2 -> httpd

[Richard B. Pyne]

Here are some other potential problems with the change:

compilers/php5/POST_INSTALL:# prototype AddType definition for apache2
compilers/php5/POST_REMOVE:elif  module_installed  apache2;  then
compilers/php5-suhosin/POST_INSTALL:# prototype AddType definition for 
apache2
compilers/php5-suhosin/BUILD:  elif module_installed apache2 ; then
compilers/php5-suhosin/POST_REMOVE:elif  module_installed  apache2;  then
web/mod_scgi/BUILD:    elif module_installed apache2 ; then
web/mod_scgi/BUILD:        AVER="apache2"
web/apache-mod_ssl/CONFLICTS:conflicts  apache2
web/apache/CONFLICTS:conflicts  apache2
zdeprecated/php/POST_INSTALL:# prototype AddType definition for apache2
zdeprecated/php/BUILD:  elif module_installed apache2 ; then
zdeprecated/php/POST_REMOVE:elif  module_installed  apache2;  then