Update notes for submitted changes

* CommitCommand: Use original author on amend if author is not set
* CommitCommand: Don't allow amending on initial commit

79/f33419ec073edf31a1db16ae9b11e69ee997a1

@@ -0,0 +1,10 @@
+Code-Review+1: Matthias Sohn <matthias.sohn@sap.com>
+IP-Clean+1: Matthias Sohn <matthias.sohn@sap.com>
+Code-Review+2: Christian Halstrick <christian.halstrick@sap.com>
+IP-Clean+1: Christian Halstrick <christian.halstrick@sap.com>
+Verified+1: Hudson CI
+Submitted-by: Christian Halstrick <christian.halstrick@sap.com>
+Submitted-at: Tue, 09 Oct 2012 05:23:34 -0400
+Reviewed-on: https://git.eclipse.org/r/8077
+Project: jgit/jgit
+Branch: refs/heads/master

c9/6b40d5921d68edb96afad38b9c171388af4e05

@@ -0,0 +1,10 @@
+Code-Review+1: Matthias Sohn <matthias.sohn@sap.com>
+IP-Clean+1: Matthias Sohn <matthias.sohn@sap.com>
+Code-Review+2: Christian Halstrick <christian.halstrick@sap.com>
+IP-Clean+1: Christian Halstrick <christian.halstrick@sap.com>
+Verified+1: Hudson CI
+Submitted-by: Christian Halstrick <christian.halstrick@sap.com>
+Submitted-at: Tue, 09 Oct 2012 05:25:22 -0400
+Reviewed-on: https://git.eclipse.org/r/8076
+Project: jgit/jgit
+Branch: refs/heads/master