Update draft release notes for 1.5.5

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

Documentation/RelNotes-1.5.5.txt

@@ -26,21 +26,85 @@ Updates since v1.5.4
  * You can be warned when core.autocrlf conversion is applied in
    such a way that results in an irreversible conversion.
 
+ * A catch-all "color.ui" configuration variable can be used to
+   enable coloring of all color-capable commands, instead of
+   individual ones such as "color.status" and "color.branch".
+
+ * The commands refused to take absolute pathnames where they
+   require pathnames relative to the work tree or the current
+   subdirectory.  They now can take absolute pathnames in such a
+   case as long as the pathnames do not refer outside of the
+   work tree.  E.g. "git add $(pwd)/foo" now works.
+
+ * Error messages used to be sent to stderr, only to get hidden,
+   when $PAGER was in use.  They now are sent to stdout along
+   with the command output to be shown in the $PAGER.
+
  * A pattern "foo/" in .gitignore file now matches a directory
    "foo".  Pattern "foo" also matches as before.
 
+ * bash completion's prompt helper function can talk about
+   operation in-progress (e.g. merge, rebase, etc.).
+
+ * Configuration variables "url.<usethis>.insteadof = <otherurl>" can be
+   used to tell "git-fetch" and "git-push" to use different URL than what
+   is given from the command line.
+
+ * "git push <somewhere> HEAD" and "git push <somewhere> +HEAD" works as
+   expected; they push the current branch (and only the current branch).
+   In addition, HEAD can be written as the value of "remote.<there>.push"
+   configuration variable.
+
+ * "git add -i" behaves better even before you make an initial commit.
+
+ * After "git apply --whitespace=fix" fixes whitespace errors in a patch,
+   a line before the fix can appear as a context or preimage line in a
+   later patch, causing the patch not to apply.  The command now knows to
+   see through whitespace fixes done to context lines to successfully
+   apply such a patch series.
+
+ * "git branch" (and "git checkout -b") to branch from a local branch can
+   optionally set "branch.<name>.merge" to mark the new branch to build on
+   the other local branch, when "branch.autosetupmerge" is set to
+   "always".  By default, this does not happen when branching from a local
+   branch.
+
+ * "git checkout" to switch to a branch that has "branch.<name>.merge" set
+   (i.e. marked to build on another branch) reports how much the branch
+   and the other branch diverged.
+
+ * When "git checkout" has to update a lot of paths, it used to be silent
+   for 4 seconds before it showed any progress report.  It is now a bit
+   more impatient and starts showing progress report early.
+
+ * "git commit" learned a new hook "prepare-commit-msg" that can
+   inspect what is going to be committed and prepare the commit
+   log message template to be edited.
+
  * "git describe" learned to limit the tags to be used for
    naming with --match option.
 
  * "git describe --contains" now barfs when the named commit
    cannot be described.
 
- * bash completion's prompt helper function can talk about
+ * "git describe --exact-match" describes only commits that are tagged.
-   operation in-progress (e.g. merge, rebase, etc.).
 
- * "git commit" learned a new hook "prepare-commit-msg" that can
+ * "git diff" learned "--relative" option to limit and output paths
-   inspect what is going to be committed and prepare the commit
+   relative to the current directory when working in a subdirectory.
-   log message template to be edited.
+
+ * "git diff" learned "--dirstat" option to show birds-eye-summary of
+   changes more concisely than "--diffstat".
+
+ * "git format-patch" learned --cover-letter option to generate a cover
+   letter template.
+
+ * "git grep" now knows "--name-only" is a synonym for the "-l" option.
+
+ * "git help <alias>" now reports "'git <alias>' is alias to <what>",
+   instead of saying "No manual entry for git-<alias>".
+
+ * "git log --grep=<what>" learned "--fixed-strings" option to look for
+   <what> without treating it as a regular expression.
 
  * "git gui" learned an auto-spell checking.
 
@@ -50,6 +114,9 @@ Updates since v1.5.4
  * "git send-email" learned an easier way to suppress CC
    recipients.
 
+ * When the configuration variable "pack.threads" is set to 0, "git
+   repack" auto detects the number of CPUs and uses that many threads.
+
  * Various "git cvsimport", "git cvsexportcommit", "git svn" and
    "git p4" improvements.
 
@@ -61,6 +128,15 @@ Updates since v1.5.4
  * It is now easier to write test scripts that records known
    breakages.
 
+ * "git checkout" is rewritten in C.
+
+ * Two conflict hunks that are separated by a very short span of common
+   lines are now coalesced into one larger hunk, to make the result easier
+   to read.
+
+ * Run-command API's use of file descriptors is documented clearer and
+   is more consistent now.
+
 
 Fixes since v1.5.4
 ------------------
@@ -68,11 +144,8 @@ Fixes since v1.5.4
 All of the fixes in v1.5.4 maintenance series are included in
 this release, unless otherwise noted.
 
-
 ---
 exec >/var/tmp/1
-O=v1.5.4
+O=v1.5.4.3-339-g7cf7f54
-O=v1.5.4.2-122-g7cb97da
 echo O=`git describe refs/heads/master`
 git shortlog --no-merges $O..refs/heads/master ^refs/heads/maint
-