well, i'd say most people think that if you are going to run the release of 1.1.0, that you should just be on 1.1.x Bleeding Edge (meaning the very latest code on github), as it has a boat load of fixes. However in this case it broke something, and thats why some people dont use bleeding edge, cause on rare occasion something breaks.
Since you are not on bleeding edge, the 'fix' I proposed above will not help you. sorry.
Is this your production site that is having problems running 1.1.0, or is this a test site?
I do suggest you wait a day or two, untill the correct fix is on github, and then upgrade to 1.1.x Bleeding Edge via the coreupdater. There are many fixes from 1.1.0 and fixes for Niara.