Previously you would get this error due to imperfect path creation
```
node contrib/install-systemd-service.js
fs.js:114
throw err;
^
Error: ENOENT: no such file or directory, copyfile '/home/justin/src/github.com/fraction/oasis/contrib/oasis.service' -> '/home/justin/.config/systemd/user/oasis.service'
at Object.copyFileSync (fs.js:1728:3)
at Object.<anonymous> (/home/justin/src/github.com/fraction/oasis/contrib/install-systemd-service.js:27:6)
at Module._compile (internal/modules/cjs/loader.js:778:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Function.Module.runMain (internal/modules/cjs/loader.js:831:12)
at startup (internal/bootstrap/node.js:283:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)
```
Problem: When our views are still indexing the database they apparently
don't respond over MuxRPC, which means that we're just waiting forever
until they finish. This means that people who are indexing the database
get an HTTP response that might take an hour to finish.
Solution: If we have more than 1 mebibyte of backlog, present an error
message explaining the situation and asking for a bit of patience.
Problem: Patchwork is soon going to release with a new SSB-Backlinks,
and since we share a database with Patchwork we should make sure we're
on the same version. If we're on different versions, we'll be constantly
regenerating indexes and that isn't fun for anyone.
Solution: Upgrade npm dependencies.
Problem: The SSB-Markdown library has some SSB-flavored quirks, like
messing with newline behavior, and is inappropriate for rendering plain
Markdown like the readme.
Solution: Since SSB-Markdown uses Markdown-It under the hood, we can use
the same library and just render our Markdown *without* the SSB-flavored
quirks. This gives us the ability to wrap text and avoid SSB-Markdown
problems without having to rewrite all of our Markdown.