Update draft release notes to 1.7.0

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

Documentation/RelNotes-1.7.0.txt

@@ -44,18 +44,55 @@ Updates since v1.6.6
 
 (subsystems)
 
+ * "git fast-import" updates; adds "option" and "feature" to detect the
+   mismatch between fast-import and the frontends that produce the input
+   stream.
+
 (portability)
 
 (performance)
 
 (usability, bells and whistles)
 
+ * More commands learned "--quiet" and "--[no-]progress" options.
+
+ * Various commands given by the end user (e.g. diff.type.textconv,
+   and GIT_EDITOR) can be specified with command line arguments.  E.g. it
+   is now possible to say "[diff "utf8doc"] textconv = nkf -w".
+
+ * "sparse checkout" feature allows only part of the work tree to be
+   checked out.
+
+ * HTTP transfer can use authentication scheme other than basic
+   (i.e./e.g. digest).
+
+ * "git checkout A...B" is a way to detach HEAD at the merge base between
+   A and B.
+
  * "git commit --date='<date>'" can be used to override the author date
    just like "git commit --author='<name> <email>'" can be used to
    override the author identity.
 
+ * "git commit --no-status" can be used to omit the listing of the index
+   and the work tree status in the editor used to prepare the log message.
+
+ * "git fetch --all" can now be used in place of "git remote update".
+
+ * "git push" learned "git push origin --delete branch", a syntactic sugar
+   for "git push origin :branch".
+
+ * "git rebase --onto A...B" means the history is replayed on top of the
+   merge base between A and B.
+
+ * Use of "git reset --merge" has become easier when resetting away a
+   conflicted mess left in the work tree.
+
  * "git status" learned "-s(hort)" output format.
 
+(developers)
+
+ * The infrastructure to build foreign SCM interface has been updated.
+
 
 Fixes since v1.6.6
 ------------------
@@ -65,6 +102,6 @@ release, unless otherwise noted.
 
 --
 exec >/var/tmp/1
-O=v1.6.6-101-gf012d27
+O=v1.6.6-242-gf287c65
 echo O=$(git describe master)
 git shortlog --no-merges $O..master ^maint