thrash.mcs.anl.gov OS update

A hard drive failed in thrash and in rebuilding it we moved it to the new trusty build (Ubuntu 14.04). This is functionally a completely fresh install with no carryover except the hostname and SSH keys, so any crontabs or other local data would not be there. As we move more servers to trusty, we’ll let you know. If you find software packages you need but aren’t installed, let us know and we’ll get them installed across the whole trusty environment.