It looks better by default with the RTD theme, Bro syntax highlighting
is supported well enough, and I think will be more more consistent
with the literalinclude usages, so being able to drop the extra Sphinx
extension seems good.
Removed "file_mime_type" and "file_mime_types" event, replacing them
with a new event called "file_metadata_inferred". It has a record
argument of type "inferred_file_metadata", which contains the mime type
information that the earlier events used to supply. The idea here is
that future extensions to the record with new metadata will be less
likely to break user code than the alternatives (adding new events or
new event parameters).
Addresses BIT-1368.
