Updating copyright on all files with git commits so far this year.

We might have exit'd earlier.

While here print signals and exit code in decimal.

This number was last changed between Varnish 1.0 and Varnish 2.0.

As far as I can read from the commits, we haven't actually removed
any interfaces in any released Varnish versions, so a revision bump
should be all that is needed.

Another possibility is to stop using -version-info and just roll
our own scheme with -release, but I don't want to go down that route
just before 4.1.0.

Patch by: Arianna

Negative values can occur intermittently due to per worker caching of
changes to counters.

Fixes: #1778

Write failures in s1 are non-fatal

Handle that conversion between VCL data type can fail,
and return a user-specificed fallback in those cases.

Mostly identical to patch from Arianna Aondio.

Fixes:	#1783

See previous commit.

Detected by:	Laurent Lavaud
Patched by:	martin (with minor shuffle by me)

Fixes:		#1781

As noted by Dridi.

Some of the WS sizes are adjusted on startup when running
on i386/i686.

Adjust the test cases to take that into account.

VMODs should never, ever, see.

can also use it.

Patch by:	martin
Some rework by:	phk

Patch by:	martin	(slightly polished)

Redhat packaging files for the official varnish-cache.org
RPMs will from now on live in a separate git repository.

This decouples source releases (including release tagging) and
the packaging work, which makes the release process easier.

Instead of asserting, return a 500 error to the client if
running out of client workspace.

This also extends vmod_debug with workspace handling functions, and
adds two test cases that use these functions.

As discussed at VDD15Q3. Reviewed by Martin.

Fixes:	#1782

I often have to look up which one is which, try to avoid
that in the future.