Update GenericMessages.template.php

Remove if else in member's profile and use a substitute instead. Kinda trying to shorten that code.
Update Admin.controller.php

Just reorganizing Admin Menu. Thought to add modifcation as additional menu. Will add $txt['admin_mods'] to language as well.
Update Admin.english.php

Add language for reorganizing admin menu. Nothing fancy. Just for me.
Update Display.controller.php

Until I understand what is $template_layers->add('quickreply') is, I am gonna disable this to enable my mod on quick reply. Otherwise, it will always be shown at the bottom of the display page. I don't want and don't like this.
Update Display.template.php

Moving quick reply to immediately after last post. Some mixed code with infinite scrolling. Will do the clean up later.
Revert "Update Display.controller.php"

This reverts commit 08c5a2ed5310ec57b5b4a746491040fe81aa464c.