releasing package apt version 1.0.9.3
doc/examples/configure-index: make "Dpkg::Max{Arg,ArgBytes} match reality

Git-Dch: ignore
Use sysconf(_SC_ARG_MAX) to find the size of Dpkg::MaxArgBytes

Instead of hardcoding Dpkg::MaxArgBytes find out about it using
the sysconf(_SC_ARG_MAX) call.
Fix incorrect comparison between signed/unsigned

Git-Dch: ignore
Only support Translation-* that are listed in the {In,}Release file

Handle Translation-* files exactly like Packages files (with the
expection that it is ok if a download of them fails). Remove all
"guessing" on apts side. This will elimimnate a bunch of errors
releated to captive portals and similar. Its also more correct
and removes another potential attack vector.
test/integration/test-bug-624218-Translation-file-handling: clarify when Translation-* is guessed
apt-pkg/deb/debindexfile.{cc,h}: kill GetIndexes()
Merge branch 'debian/sid' into debian/experimental

Conflicts:
	debian/changelog
prepare ABI for feature/socketpair
Bump ABI to 4.15
Merge remote-tracking branch 'upstream/debian/experimental' into feature/no-more-acquire-guessing

Conflicts:
	apt-pkg/acquire-item.cc
Merge remote-tracking branch 'mvo/feature/no-more-acquire-guessing' into debian/experimental