Enable limiting Samizdat to a particular set of locations
Currently once deployed Samizdat will handle all sub-locations of wherever is deployed.
For example, if it's deployed at example.com/, it will handle all locations on that domain; if it's deployed at example.com/samizdated/, it will only handle sub-locations of that (ut not, for example, example.com/non-samizdated/).
It would be good to be able to configure which sub-locations should be handled by Samizdat. This could be done as a configurable regex in service-worker.js