[deltacloud-devel] Fix for Chrome Accept headers

[Michal Fojtik]

Hi everyone,

This little patch will fix Chrome behavior, which I discovered recently.
When you navigate to API page, you will get XML version of API.

This is because Chrome sending 'application/xml' mime type before
'text/html' (which is weird but standard correct).
Unfortunately, we are lacking 'q' parameter handling in 'respond_to'
plugin to handle this correctly...