Add support for all node "tb-set-tarfiles".
"tb-set-tarfiles" is like "tb-set-node-tarfiles" except that it distributes the tarfile to all nodes rather than just one and that it uses frisbee to distribute the file. These changes involved 1) refactoring frisbee info from images table into a new table, frisbee_blobs, 2) a new experiment_blobs table, and 3) a new tmcd command so the node knows how to get the files from the server. The changes where designed to be general purpose enough to eventually support: 1) Distributing arbitrary files (not just tarfiles) to nodes 2) Perform arbitrary actions on those files 3) Use arbitrary methods to get the files As such the tmcd line is as follows: URL=* ACTION=* where URL is currently: frisbee.mcast://<ADDR>/<FILE> for example frisbee.mcast://18.104.22.168:18092/users/kevina/home-dir.tar.gz and when we get around to using a master Frisbee server it could be frisbee://* or it could be a file://, http://, etc. and ACTION is currently: unpack:<LOCATION> for example unpackt:/users with future syntax to be determined.