Update notes for submitted changes

* mcf: Add sanity check for git mirrors, premirrors and sstatemirrors (v4.0.6)
Update notes for submitted changes

* mcf: Read weboslayers.py just once and verify MACHINE values (v4.0.7)
Update notes for submitted changes

* mcf: Don't unnecessary call git remote update (v4.0.8)
Update notes for submitted changes

* mcf: Remove update parameter from downloadrepo function (v4.0.9)
Update notes for submitted changes

* mcf: Simplify updaterepo function (v4.0.10)
Update notes for submitted changes

* weboslayers.py: Comment newly added MACHINE-s list
Update notes for submitted changes

* mcf: Change error message for unsupported MACHINEs (v4.0.11)
Update notes for submitted changes

* webos-image: Update upstream layer pins for 2014-04-10
Update notes for submitted changes

* webos-image: Update upstream layer pins for 2014-06-17