Up to now git has assumed that all servers are able to fix thin
packs. This is however not always the case.

Document the 'no-thin' capability and prevent send-pack from generating
a thin pack if the server advertises it.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Signed-off-by: Junio C Hamano <gitster@pobox.com>

* bw/solaris-sed-tr-test-portability:
  t4015: simplify sed command that is not even seen by sed
  Avoid difference in tr semantics between System V and BSD
  Change sed i\ usage to something Solaris' sed can handle

* vd/doc-unpack-objects:
  Documentation: "pack-file" is not literal in unpack-objects
  Documentation: restore a space in unpack-objects usage

Test fixup to a topic recently graduated.

* jk/duplicate-objects-in-packs:
  Fix '\%o' for printf from coreutils

* jk/subtree-install-fix:
  subtree: add makefile target for html docs

* ak/cvsserver-stabilize-use-of-hash-keys:
  cvsserver: Determinize output to combat Perl 5.18 hash randomization

* jk/wrap-perl-used-in-tests:
  t: use perl instead of "$PERL_PATH" where applicable
  t: provide a perl() function which uses $PERL_PATH

* sc/doc-howto-dumb-http:
  doc/howto: warn about (dumb)http server document being too old

* jn/test-prereq-perl-doc:
  t/README: tests can use perl even with NO_PERL