!14 避免 url rewrite 不启作用，参考最新tp5.0手册

Merge pull request !14 from latera/master

Author: laterz

public/.htaccess

@@ -4,5 +4,5 @@
 
   RewriteCond %{REQUEST_FILENAME} !-d
   RewriteCond %{REQUEST_FILENAME} !-f
-  RewriteRule ^(.*)$ index.php/$1 [QSA,PT,L]
+  RewriteRule ^(.*)$ index.php?/$1 [QSA,PT,L]
 </IfModule>