[Chandler-dev] Alpha3 readme and known bugs

[Bryan Stearns]

Reid Ellis wrote:
> Hm, this should really be the option key on the Mac.
>
> Reid
Actually, I made it the ctrl key on purpose, so that we didn't have to 
find out what platform someone was running in order to explain how to 
use this mechanism: it's the only key consistently labeled on all 
keyboards on all platforms.

If holding down ctrl at app-launch means something to a particular 
platform, then we could change it. (I asked, back then, and didn't hear 
any platform-specific reasons why ctrl wouldn't work.) Otherwise, I want 
to keep it consistent.

...Bryan