added a distributed invocation script
treeb7d1c732250d79dfb2bbdd785fd55803ac725074
-rw-r--r-- 33850 raytracer.erl
-rwxr-xr-x 86 run-concurrent.sh
-rwxr-xr-x 112 run-distributed.sh
-rwxr-xr-x 82 run.sh