Co-authored-by: Alexandra Tolstikova <alexandra.tolstikova@desy.de>

Fixes: #76

Fixes: #26

Fixes: #8

This avoids an apparently infinite loop with some corner case input.

Previously, it assumed Linux and x86_64

Fixes: #74

SVG icons are nice, but need a gdk-pixbuf loader which isn't always
available.

This commit also removes some files that were accidentally included in
the gresource.xml file.

Just a bug.

Fixes: #72

Without these, the algorithms assume defaults which don't necessarily
match what the user intended.

Fixes: #70

For cases where you need it (high performance online processing), it's
very spammy.

Previously, the whole program would exit if any worker saw kEndOfStream.
Unfortunately, this happens quite often, due to data starvation (too
many workers for the data rate) or just general slowness.  Therefore we
need a more robust criterion.

The old maximum was 64 kilobytes, and a 68k geometry file has now been
seen in the wild.  The limit is only needed to prevent runaway memory
allocation in the case of a corrupted stream.  So it's safe to increase
it quite a lot.

This reverts commit 50d0043d.

It spams the terminal too much, and ASAP::O-tv shows this time more
comfortably via a web interface.