Update draft release notes to 1.7.9

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

Documentation/RelNotes/1.7.9.txt

@@ -4,11 +4,24 @@ Git v1.7.9 Release Notes (draft)
 Updates since v1.7.8
 --------------------
 
+ * git-gui updated to 0.16.0.
+
+ * git-p4 (in contrib/) updates.
+
  * Porcelain commands like "git reset" did not distinguish deletions
    and type-changes from ordinary modification, and reported them with
    the same 'M' moniker. They now use 'D' (for deletion) and 'T' (for
    type-change) to match "git status -s" and "git diff --name-status".
 
+ * "git branch -m <current branch> HEAD" is an obvious no-op and is
+   now allowed.
+
+ * "git checkout -B <current branch> <elsewhere>" is a more intuitive
+   way to spell "git reset --keep <elsewhere>".
+
+ * "git checkout" and "git merge" learned "--no-overwrite-ignore" option
+   to tell Git that untracked and ignored files are not expendable.
+
  * fsck and prune are relatively lengthy operations that still go
    silent while making the end-user wait. They learned to give progress
    output like other slow operations.
@@ -41,6 +54,10 @@ Updates since v1.7.8
    which serves as a global fallback for setting 'branch.<name>.rebase'
    configuration variable per branch.
 
+ * "git tag" learned "--cleanup" option to control how the whitespaces
+   and empty lines in tag message are cleaned up.
+
+ * "gitweb" learned to show side-by-side diff.
 
 Also contains minor documentation updates and code clean-ups.
 
@@ -48,14 +65,31 @@ Also contains minor documentation updates and code clean-ups.
 Fixes since v1.7.8
 ------------------
 
- * In some codepaths (notably, checkout and merge), the ignore patterns
-   recorded in $GIT_DIR/info/exclude were not honored. They now are.
-   (merge fc001b5 nd/maint-ignore-exclude later to maint).
+ * The function header pattern for files with "diff=cpp" attribute did
+   not consider "type *funcname(type param1,..." as the beginning of a
+   function.
+   (merge 37e7793 tr/userdiff-c-returns-pointer later to maint).
 
+ * LF-to-CRLF streaming filter used when checking out a large-ish blob
+   fell into an infinite loop with a rare input.
+   (merge 284e3d2 cn/maint-lf-to-crlf-filter later to maint).
+
+ * "git archive" mistakenly allowed remote clients to ask for commits
+   that are not at the tip of any ref.
+   (merge 7b51c33 jk/maint-upload-archive later to maint).
+
+ * "git apply --check" did not error out when given an empty input
+   without any patch.
+   (merge cc64b31 bc/maint-apply-check-no-patch later to maint).
+
+ * The error message from "git diff" and "git status" when they fail
+   to inspect changes in submodules did not report which submodule they
+   had trouble with.
+   (merge 6a5ceda jl/submodule-status-failure-report later to maint).
 
 --
 exec >/var/tmp/1
-O=v1.7.8-162-gd2c7807
+O=v1.7.8-246-gb3f17ac
 echo O=$(git describe master)
 git log --first-parent --oneline --reverse ^$O master
 echo