Merge branch 'jh/shorten-refname' into pu

When remotes/origin/HEAD is not a symbolic ref, "rev-parse
--abbrev-ref remotes/origin/HEAD" ought to show "origin", not
"origin/HEAD", which is fixed with this series (if it is a symbolic
ref that points at remotes/origin/something, then it should show
"origin/something" and it already does).

I think this is being rerolled using strbuf_expand().

* jh/shorten-refname:
  t1514: refname shortening is done after dereferencing symbolic refs
  shorten_unambiguous_ref(): Fix shortening refs/remotes/origin/HEAD to origin
  t1514: Demonstrate failure to correctly shorten "refs/remotes/origin/HEAD"
  t1514: Add tests of shortening refnames in strict/loose mode
Merge branch 'nd/warn-ambiguous-object-name' into pu

"git cmd <name>", when <name> happens to be a 40-hex string,
directly uses the 40-hex string as an object name, even if a ref
"refs/<some hierarchy>/<name>" exists.  This disambiguation order
is unlikely to change, but we should warn about the ambiguity just
like we warn when more than one refs/ hierachies share the same
name.

The message needs to be fixed up, as this is not "refname is
ambiguous".

* nd/warn-ambiguous-object-name:
  get_sha1: improve ambiguity warning regarding SHA-1 and ref names
Merge branch 'jk/gitweb-utf8' into pu

Various fixes to gitweb.

* jk/gitweb-utf8:
  gitweb: Fix broken blob action parameters on blob/commitdiff pages
  gitweb: Don't append ';js=(0|1)' to external links
  gitweb: Make feed title valid utf8
  gitweb: Fix utf8 encoding for blob_plain, blobdiff_plain, commitdiff_plain, and patch
Merge branch 'jc/format-patch' into pu

A new option to send a single patch to the standard output to be
appended at the bottom of a message.  I personally have no need for
this, but it was easy enough to cobble together.  Tests, docs and
stripping out more MIMEy stuff are left as exercises to interested
parties.

* jc/format-patch:
  format-patch: --inline-single
  format-patch: rename "no_inline" field

# Conflicts:
# 	pretty.c
Merge branch 'jk/commit-info-slab' into pu

Technology demonstration to show a way we could use unbound number
of flag bits on commit objects.

* jk/commit-info-slab:
  commit-slab: introduce a macro to define a slab for new type
  commit-slab: avoid large realloc
  commit: allow associating auxiliary info on-demand
Merge branch 'mg/more-textconv' into pu

Looked reasonable, I think.  Comments?

* mg/more-textconv:
  grep: honor --textconv for the case rev:path
  grep: allow to use textconv filters
  t7008: demonstrate behavior of grep with textconv
  cat-file: do not die on --textconv without textconv filters
  show: honor --textconv for blobs
  diff_opt: track whether flags have been set explicitly
  t4030: demonstrate behavior of show with textconv
Merge branch 'mh/multimail' into pu

$gmane/223564

* mh/multimail:
  git-multimail: a replacement for post-receive-email
Merge branch 'hv/config-from-blob' into pu

* hv/config-from-blob:
  do not die when error in config parsing of buf occurs
  teach config --blob option to parse config from database
  config: make parsing stack struct independent from actual data source
  config: drop cf validity check in get_next_char()
  config: factor out config file stack management
Merge branch 'jk/fetch-always-update-tracking' into pu

"git fetch origin master" unlike "git fetch origin" or "git fetch"
does not update "refs/remotes/origin/master" and it was an early
design decision to keep the update of remote tracking branches
predictable, but in practice it turns out that people find it more
convenient to opportunisticly update them whenever we have a
chance, and we have been updating them when we run "git push" which
already breaks the original "predictability" anyway.

* jk/fetch-always-update-tracking:
  fetch: opportunistically update tracking refs
  refactor "ref->merge" flag
  fetch/pull doc: untangle meaning of bare <ref>
  t5510: start tracking-ref tests from a known state
Merge branch 'nd/clone-connectivity-shortcut' into pu

* nd/clone-connectivity-shortcut:
  clone: open a shortcut for connectivity check
  index-pack: remove dead code (it should never happen)
  fetch-pack: prepare updated shallow file before fetching the pack
  clone: let the user know when check_everything_connected is run
Merge branch 'jx/clean-interactive' into pu

* jx/clean-interactive:
  test: add t7301 for git-clean--interactive
  git-clean: add documentation for interactive git-clean
  git-clean: add ask each interactive action
  git-clean: add select by numbers interactive action
  git-clean: add filter by pattern interactive action
  SQUASH???
  git-clean: use a git-add-interactive compatible UI
  git-clean: add colors to interactive git-clean
  git-clean: show items of del_list in columns
  git-clean: add support for -i/--interactive
  git-clean: refactor git-clean into two phases
  Refactor write_name_quoted_relative, remove unused params
  Refactor quote_path_relative, remove unused params
  quote.c: remove path_relative, use relative_path instead
  path.c: refactor relative_path(), not only strip prefix
Merge branch 'rh/merge-options-doc-fix' into pu

* rh/merge-options-doc-fix:
  Documentation/merge-options.txt: restore `-e` option
Merge branch 'rr/zsh-color-prompt' into pu

* rr/zsh-color-prompt:
  prompt: colorize ZSH prompt
  prompt: factor out gitstring coloring logic
  prompt: introduce GIT_PS1_STATESEPARATOR