fast-{import,export}: use get_sha1_hex() to read from marks file

It's wrong to call get_sha1() if they should be SHA-1s, plus
inefficient.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'fc/fast-export-persistent-marks' into pu

One in the original three-patch series has been found to be faulty
(optimized by rejecting anything but 40-hex as object name
reference, contrary to what has been documented), but kept two
obviously correct optimizations.  The numbers in the log messages
of the remaining changes may become different but I do not expect
it to change that much.

* fc/fast-export-persistent-marks:
  fast-{import,export}: use get_sha1_hex() to read from marks file
  fast-export: don't parse commits while reading marks file
  fast-export: do not parse non-commit objects while reading marks file
Merge branch 'nd/clone-local-with-colon' into pu

* nd/clone-local-with-colon:
  clone: allow cloning local paths with colons in them
Merge branch 'jh/shorten-refname' into pu

* 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

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

Instead of typing four capital letters "HEAD", you can say "@"
instead.

There was another series from Ram that looked mostly test updates
but I lost track of which one was which.  In any case, are people
happy with this series?

* fc/at-head:
  Add new @ shortcut for HEAD
  sha1_name: refactor reinterpret()
  sha1_name: compare variable with constant, not constant with variable
  sha1_name: remove unnecessary braces
  sha1_name: remove no-op
Merge branch 'kb/full-history-compute-treesame-carefully' into pu

Major update to a very core part of the system to improve culling
of irrelevant parents while traversing a mergy history.

Will not be a 1.8.3 material, but is an important topic.

* kb/full-history-compute-treesame-carefully:
  revision.c: treat A...B merge bases as if manually specified
  revision.c: discount side branches when computing TREESAME
  simplify-merges: drop merge from irrelevant side branch
  simplify-merges: never remove all TREESAME parents
  t6012: update test for tweaked full-history traversal
  revision.c: Make --full-history consider more merges
  rev-list-options.txt: correct TREESAME for P
  t6111: allow checking the parents as well
  t6111: new TREESAME test set
  t6019: test file dropped in -s ours merge
  decorate.c: compact table when growing
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

Rerolled. I am not sure if I like "show <blob>" and "grep" that use
textconv by default, though.

* mg/more-textconv:
  git grep: honor textconv by default
  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
  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