Merge branch 'mg/qnx6' into pu

Still under discussion.
Not ready for inclusion.

* mg/qnx6:
  QNX: newer QNX 6.x.x is not so crippled
Merge branch 'mb/gitweb-highlight-link-target' into pu

Expecting a reroll.
$gmane/211935

* mb/gitweb-highlight-link-target:
  Highlight the link target line in Gitweb using CSS
Merge branch 'mb/remote-default-nn-origin' into pu

When the user does not specify what remote to interact with, we
often attempt to use 'origin'.  This can now be customized via a
configuration variable.

Expecting a reroll.
$gmane/210151

"The first remote becomes the default" bit is better done as a
separate step.

* mb/remote-default-nn-origin:
  Teach get_default_remote to respect remote.default.
  Test that plain "git fetch" uses remote.default when on a detached HEAD.
  Teach clone to set remote.default.
  Teach "git remote" about remote.default.
  Teach remote.c about the remote.default configuration setting.
  Rename remote.c's default_remote_name static variables.

Conflicts:
	builtin/remote.c
	t/t5505-remote.sh
Merge branch 'hv/config-from-strbuf' into pu

Expecting a reroll.
$gmane/217811

* hv/config-from-strbuf:
  teach config parsing to read from strbuf
  config: make parsing stack struct independent from actual data source
  config: drop file pointer validity check in get_next_char()
  config: factor out config file stack management
Merge branch 'tr/line-log' into pu

Expecting a reroll.
$gmane/217278

* tr/line-log:
  log -L: :pattern:file syntax to find by funcname
  Implement line-history search (git log -L)
  Export rewrite_parents() for 'log -L'
  blame: introduce $ as "end of file" in -L syntax
  Refactor parse_loc

Conflicts:
	log-tree.c
Merge branch 'pc/subtree-add-before-fetch' into pu

Will discard.
Not getting enough reviews.

* pc/subtree-add-before-fetch:
  contrib/subtree: allow addition of remote branch with name not locally present
Merge branch 'gp/forbid-describe-all-match' into pu

"describe --match=<pattern> --all <commit>" ought to mean "use refs
that match <pattern> to describe <commit>; you do not have to limit
yourself to annotated tags."  But it doesn't.  Disable the
combination.

Will discard.

jc/describe topic fixes the semantics of --match used with --all
option.

* gp/forbid-describe-all-match:
  describe: make --all and --match=PATTERN mutually incompatible
Merge branch 'po/help-guides' into pu

Give more visibility to "concept guides" to help "git help" users.

Expecting a reroll.
$gmane/217384

* po/help-guides:
  help doc: include --guide option description
  help.c: add list_common_guides_help() function
  help.c: add --guide option
  help.c: use OPT_COUNTUP
  show 'git help <guide>' usage, with examples
Merge branch 'kb/p4merge' into pu

* kb/p4merge:
  mergetools/p4merge: create a base if none available
  mergetools/p4merge: swap LOCAL and REMOTE