[1.3.x] Installer config.php permission bug and install dir

I have been through the installer a few times now and have noticed a small bug.

The detection to see if the config.php and admin/config.php isn't accurate.

In the installer:
<basedir>/config.php Writable
<basedir>/admin/config.php Writable

But they definitely are not writable, and get the following error when attempting to progress:

Warning: config.php needs to be writable for OpenCart to be installed!

I fix the perms and continue as normal.

Also, it might be an idea to include some check code in the main opencart app (or at least the admin modules) warning you that the install directory still exists and should be removed. I fear that there would be quite a few people out there who get OpenCart installed, jump in to the admin console to start playing and forget all about the install directory removal (if they see it in the first place).

just done another upadte with the fix in for the installer.

thanks for letting me know!

hi~`can u tell me where can i download the fix of the Installer? Can u put on the link?