Merge branch 'maint'

Merge branch 'maint'

* maint:
  Eliminate confusing "won't bisect on seeked tree" failure
  builtin-reflog.c: don't install new reflog on write failure
  send-email: fix In-Reply-To regression
  Fix 'git cvsexportcommit -w $cvsdir ...' when used with relative $GIT_DIR
  Add testcase for 'git cvsexportcommit -w $cvsdir ...' with relative $GIT_DIR
  Prompt to continue when editing during rebase --interactive
  Documentation/git svn log: add a note about timezones.
  Don't use GIT_CONFIG in t5505-remote

Conflicts:

	t/t9001-send-email.sh
	t/t9200-git-cvsexportcommit.sh