docs: Remove obsolete code.osso.nl link, replace with downloads.osso.nl.

Update README.md to deprecate this old thing.

Add warning to README.md that the prebuilt jar may require renaming.

update the link to the latest build

set the From email header to FROM_EMAIL

Wait for process p to terminate.

Hint that you need the script to be executable.

Don't use a namedtuple for LogMessage.

A touch of PEP8 on the graylog-email-alert python example.

force bson ObjectId to a string before json serialisation

sort the elasticsearch

add a download link to our prebuilt jar

because fancy is just not good enough

add an example script using python

* fix whitespace in Makefile