rainbow preloading disabled in joyride (temporarily?)

[Daniel Drake]

Hi,

rainbow's python module preloading causes a lot of activity breakage
in joyride (any activity based on gstreamer such as Record, Chat,
etc). Some reasons are detailed here:
http://dev.laptop.org/ticket/9035

I just released rainbow-0.7.27 which turns off preloading. It will be
in the next joyride. Having activities that start a bit slower than
usual is better than having activities that do not start at all. This
doesn't mean that preloading is turned off forever (although some of
us would like that), but it is certainly disabled until someone comes
up with a solution for the above bug at the very least.

Daniel