remove -d from .htaccess RewriteCond

this caused issues when you try to mount a blog.php under /blog. apache serves you blog.php although blog.php is not a directory.

removing the RewriteCond resolves the issue.

doc/usage.rst

@@ -33,7 +33,6 @@ are using apache you can use a ``.htaccess`` file for this.
     	RewriteEngine On
     	#RewriteBase /path/to/app
     	RewriteCond %{REQUEST_FILENAME} !-f
-    	RewriteCond %{REQUEST_FILENAME} !-d
     	RewriteRule ^(.*)$ index.php [QSA,L]
     </IfModule>
 

example.htaccess

@@ -2,6 +2,5 @@
 	RewriteEngine On
 	#RewriteBase /path/to/app
 	RewriteCond %{REQUEST_FILENAME} !-f
-	RewriteCond %{REQUEST_FILENAME} !-d
 	RewriteRule ^(.*)$ index.php [QSA,L]
 </IfModule>