Merge branch 'cache-inbound-oob'
* cache-inbound-oob:
Intrument cacheOOB
Fetch any OOB URL from route and cache in jingle store
Set up structure to cache OOB coming from a direct message route
Fetch any OOB URL from route and cache in jingle store
Now we actually cache the data. Always assumes URLs are HTTP, but they always
are in practise and if one is not it will simply fail and in case of any error
we just pass the oob element through unmodified.
Fix path to the cheogram artifact
Fix CI
jingle-xmpp isn't on hackage (yet?) so we need to install it from git.
Because we install everything from hackage in CI instead of using Debian
packages, installing jingle-xmpp first can cause a version of random not
compatible with some cheogram dependencies to get installed. Easiest fix for
that is to just install a known-good version first, then everything works.