Increase system memory requirement to 256MB.
Reinstate the tray binaries. This commit was supposed to update run.sh, we're keeping that; it removed a whole load of tray stuff, that's what I'm reverting here.

This reverts commit 594ce9b1c5c0caee2fc5b4510e81e7641788d417.

Conflicts:

	res/unix/run.sh