First implementation of test harness

BUGS / MISSING FEATURES:

 - "do.sh $command $num" ignores the second argument

 - "do.sh createfile $num" doesn't verify that the file was created successfully

 - "stopnode.sh $type $N" doesn't support directly killing the primary
Increase sleeping time and stop tailing the logs
Randomize stopped node
Randomize master so we don't get stuck talking to a dead one
Implement test from wiki
Add a workarea for all test stuff
implementation scripts should never print to stdout
randomize node names to avoid conflicts
pass random seed around to children and loop for a working master
add a verification script
first iteration of the randomized testing script
switch to bash
switch to bash
switch to bash
use F as argument instead of N
search for not yet dead node instead of guessing a bunch of times