r40Gamma4

I just noticed there were still references to some of my old "Ma time objects" classes in 1.0r40gamma3. I'm pretty surprised no one mentioned this! I thought Monticello would warn me if I tried to load code which had no defined class, but it doesn't. So I used Lint to find occurrences of "References an undeclared variable" and removed them.

It also includes some improvements to make the network test cases more platform independent, so launching images on Linux works without needing to change code.

Release is imminent, please let me know of any final issues asap.

- Chris