In order to implement MDL-74608, it is going to be more work to update all these web services than implementing all of the rest of this features, becuase whoever created all these services did it by copy-paste, rather than to writing a few functions to handle the common module settings consistently.

Rather than doing lots more copying and pasting in MDL-74608, I decided to do it prperly, and create this issue to re-factor the existing services to use some common helper methods. Then, implementing MDL-74608 will be easy.