Background
- I'm building a web application for a client.
 - This app will be accessible to the world and will be placed in a directory (e.g., 
/my-app) in web-root. A subdomain isn't an option as they don't want to cough up the dough for another SSL cert. /my-appis the only directory that I'm allowed to touch (unreasonable IT guys).- I'm using an icon set which requires attribution.
 - I've contacted the original author of the icon set and have gotten permission to link back to his work in the 
THANKSsection of ahumans.txtfile. - I also feel like I should mention some other people's work. This information combined with the above will probably take up a good 20 lines, so a separate file like 
humans.txtseems like an ideal place to put this considering that I'll be serving minified markup, CSS, and script files. 
Questions
Since I'm not allowed to place a
humans.txtfile in web-root, (and even if I was, it wouldn't really make much sense to put it there as it only applies to the/my-appportion of the site) is it acceptable to do the following:- Create: 
/my-app/humans.txt - Place: 
<link rel="author" href="//example.com/my-app/humans.txt">in my markup 
- Create: 
 I'll be serving strict HTML 4.01 and the
authorvalue for therelattribute doesn't seem to be a recognized link type in that specification. Do I need to do anything extra to define theauthorlink type, or is the act of using it enough?
I don't even know if there are any non-spider tools that actually use this file at the moment, but I'd like to minimize the chance of this not working in the future when something does come along.