Fix the issue of `Undefined variable $user`

[mahmoudmohamedramadan]

When I watched @taylorotwell introduce this awesome application in Laracon I said to myself that I must use that, and really when I used this application I found that powerful more than I think. I tried some features of that application and when I reach Route Model Binding feature I found this Undefined variable $user error raised, and when I debugged the code I found that the issue was in /, and I when replaced it with \\ I found no issue 🎉 (I think that similar to this #46 solved issue).

[driesvints]

This seems to break the test suite.

[mahmoudmohamedramadan]

@driesvints but this issue was really solved! I think there is a fault in the test suite.