Update draft release notes to 1.7.11 (11th batch)

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

Documentation/RelNotes/1.7.11.txt

@@ -53,9 +53,6 @@ UI, Workflows & Features
  * The "fmt-merge-msg" command learns to list the primary contributors
    involved in the side topic you are merging.
 
- * The cases "git push" fails due to non-ff can be broken into three
-   categories; each case is given a separate advise message.
-
  * "git rebase" learned to optionally keep commits that do not
    introduce any change in the original history.
 
@@ -94,21 +91,11 @@ Performance and Internal Implementation (please report possible regressions)
 
  * "git apply" had some memory leaks plugged.
 
- * "git repack" used to write out unreachable objects as loose objects
-   when repacking, even if such loose objects will immediately pruned
-   due to its age.
-
  * Setting up a revision traversal with many starting points was
    inefficient as these were placed in a date-order priority queue
    one-by-one.  Now they are collected in the queue unordered first,
    and sorted immediately before getting used.
 
- * "git rev-parse --show-prefix" used to emit nothing when run at the
-   top-level of the working tree, but now it gives a blank line.
-
- * Minor memory leak during unpack_trees (hence "merge" and "checkout"
-   to check out another branch) has been plugged.
-
  * More lower-level commands learned to use the streaming API to read
    from the object store without keeping everything in core.
 
@@ -129,6 +116,14 @@ Unless otherwise noted, all the fixes since v1.7.10 in the maintenance
 releases are contained in this release (see release notes to them for
 details).
 
+ * The DWIM behaviour for "log --pretty=format:%gd -g" was somewhat
+   broken and gave undue precedence to configured log.date, causing
+   "git stash list" to show "stash@{time stamp string}".
+   (merge 55ccf85 jk/maint-reflog-walk-count-vs-time later to maint).
+
+ * Running "git checkout" on an unborn branch used to corrupt HEAD.
+   (merge 8338f77 ef/checkout-empty later to maint).
+
  * When checking out another commit from an already detached state, we
    used to report all commits that are not reachable from any of the
    refs as lossage, but some of them might be reachable from the new