Use alias rule always

- I tested using the new RewriteCond and RewriteRule that were in the comments
  on my previous commit against a non-aliased host - and they work perfectly in
  that environment. As such, this is actually a better solution, as it will work
  in all cases.
- Documented the reasons for the rule in the generated file.

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@25210 44c647ce-9c0f-0410-b52a-842ac1e357ba