Spotted by:	scoof

Avoid using gnu make specific rules. While here sort entries and add
missing dep for varnishd.

notice if the params have changed.

Fixes #1429

This option got added by misstake. Disable it as it doesn't do any
good for this application.

Zeroed in on by:	scoof

SLT_Debug is special as it is both used as a binary log record and as
a text record. Add a special case for it and don't escape-output the
trailing zero.

Also make sure that objects marked uncacheable on an IMS is treated
as such.

Rename beresp.storage to beresp.storage_hint for consistency.

This would cause the API to link this log record to itself, creating
endless loops. Correct it by setting it to zero (meaning no parent).