Groovebasin too memory intensive for 256mb Ras Pi

Not an issue so much as a documentation omission.

I spent most of yesterday compiling libav, libgroove, and groovebasin, only to have it bail out on startup with Error Code 137, which Google tells me is Node.js speak for "OS sent a kill signal due to out-of-memory conditions". This was on a 256mb Ras Pi, with the most generous split for memory to the OS (it's running headless, no need for gfx), and no swapfile. There were no other services running on the system at the time.

I could probably alleviate the issue if I added a swapfile, but I don't wish to do that.

Perhaps a heads-up is in order in the docs, to keep others from burning away the hours! Unless I did something wrong?