Replace github.com/gorilla/mux package

[HeavyWombat]

Replace github.com/gorilla/mux package with a suitable alternative.

[esslamben]

Any reason for this? doesn't look like mux is being used anywhere in the project.

[HeavyWombat]

Any reason for this? doesn't look like mux is being used anywhere in the project.

Ever since I heard that gorilla/mux is going to be unmaintained, I wanted to see how difficult it is to do a replacement. You are right, I cannot find where I used it, but for some reason I am pretty sure I did have a test case that used it. Maybe I moved that piece of code into another repository. Have to check again ... yeah, turns out that code got refactored into its own module some time back: ytbx.