New build 609

[bert at freudenbergs.de]

Build 609 ChangeLog
Base OS:
    - kernel - 2.6.22 - 638cc4e1b9be8e0
        * FB: GEODE: be more aggressive in fb_blank, turning 
        * GEODE: FB: update DC locking
        * OLPC: dcon: call fb_blank rather than fb_power{up,down}
        * GEODE: FB: clean up lx_blank_display
    - rainbow - 0.6.6 - 1 
        * #3908 Fix /sbin/olpc-update to account for stealth filesystem layout change
        * #3924 (Partial Fix) Launching activities inside containers doesn't work