This is just weird...you can't have a slogan in the bathroom? When your religion prohibits everything you ought to have a thicker skin about violations. I seriously doubt IW made that texture just for that picture frame in that location. They probably didn't even notice it.
You saw what happened in Libya a month ago. Right?
You are aware that it's not the religion itself that's the problem, but the extremists within that use whatever means they can find to incite outrage and violence to further their cause. Aren't you?
And you know that it's not just the Muslim faith that suffers from such false and manipulative practitioners but all religions as it is of humankind's base nature to do so. Don't you?
So you understand that what this is isn't an act of censorship but an act of responsibility on the developer's part to avoid providing more fodder to be used to incite more incidents that'll lead to the loss of life.