Update draft release notes to 2.0

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

Documentation/RelNotes/2.0.0.txt

@@ -136,7 +136,8 @@ UI, Workflows & Features
 
 Performance, Internal Implementation, etc.
 
- * The compilation options to port to AIX has been updated.
+ * The compilation options to port to AIX and to MSVC have been
+   updated.
 
  * We started using wildmatch() in place of fnmatch(3) a few releases
    ago; complete the process and stop using fnmatch(3).
@@ -170,6 +171,10 @@ Unless otherwise noted, all the fixes since v1.9 in the maintenance
 track are contained in this release (see the maintenance releases'
 notes for details).
 
+ * "git update-ref --stdin" did not fail a request to create a ref
+   when the ref already existed.
+   (merge b9d56b5 mh/update-ref-batch-create-fix later to maint).
+
  * "git diff --no-index -Mq a b" fell into an infinite loop.
    (merge ad1c3fb jc/fix-diff-no-index-diff-opt-parse later to maint).
 
@@ -190,23 +195,9 @@ notes for details).
    "ahead/behind/gone" translated to the user's locale.
    (merge 7a76c28 mm/status-porcelain-format-i18n-fix later to maint).
 
-
- * "git repack" died when asked to (re)pack with the reachability
-   bitmap when a bitmap cannot be built; instead, just (re)pack
-   without producing a bitmap in such a case, with a warning.
-   (merge 373c67d jk/pack-bitmap later to maint).
-
-
- * The progress output while repacking and transferring objects showed
-   an apparent large silence while writing the objects out of existing
-   packfiles, when the reachability bitmap was in use.
-   (merge 78d2214 jk/pack-bitmap-progress later to maint).
-
-
  * A stray environment variable $prefix could have leaked into and
    affected the behaviour of the "subtree" script (in contrib/).
 
-
  * When it is not necessary to edit a commit log message (e.g. "git
    commit -m" is given a message without specifying "-e"), we used to
    disable the spawning of the editor by overriding GIT_EDITOR, but
@@ -214,7 +205,6 @@ notes for details).
    commit log message, are also affected.
    (merge b549be0 bp/commit-p-editor later to maint).
 
-
  * "git mv" that moves a submodule forgot to adjust the array that
    uses to keep track of which submodules were to be moved to update
    its configuration.
@@ -274,7 +264,7 @@ notes for details).
 
  * Codepaths that parse timestamps in commit objects have been
    tightened.
-   (merge 3f419d4 jk/commit-dates-parsing-fix later to maint).
+   (merge f80d1f9 jk/commit-dates-parsing-fix later to maint).
 
  * "git diff --external-diff" incorrectly fed the submodule directory
    in the working tree to the external diff driver when it knew it is
@@ -329,3 +319,7 @@ notes for details).
    extra and unnecessary trailing slash (such a slash is often
    given by command line completion).
    (merge 2e70c01 nd/submodule-pathspec-ending-with-slash later to maint.)
+
+ * Documentation and in-code comments had many instances of mistaken
+   use of "nor", which have been corrected.
+   (merge 235e8d5 jl/nor-or-nand-and later to maint).