Bug#1025984: watch: add json output

[Jelmer Vernooij]

Package: qa.debian.org
Severity: wishlist

It would be great if watch had a json mode, like vcswatch does.

E.g. allowing the retrieval of 
https://qa.debian.org/cgi-bin/watch?package=foo&json=1 to get the watch status 
for package foo.