README: Update for Dizzy release

Change-Id: Ic771191c7a2810a532e9aad211ac4c9ad9c4d821
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
default.xml: update for release 1.7

Change-Id: Ibbd1428a3751546cd2d1664a469a4a0d317c6540
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
default.xml: resetting revisions for development after 1.7

Change-Id: I7d6159864f37e05eb0962dd569bb6a5106adc11c
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>