fix(scripts/test-cluster): use v2 flags and relative path for etcd
fix(scripts/test-cluster): Find the path for /bin/etcd instead of hardcoding
fix(scripts/test-cluster): Forgot to use /home/jravetch/Projects/etcd/scripts for the other nodes
Merge branch 'update-cluster-script'

* update-cluster-script:
  fix(scripts/test-cluster): Forgot to use /home/jravetch/Projects/etcd/scripts for the other nodes
  fix(scripts/test-cluster): Find the path for /bin/etcd instead of hardcoding
  fix(scripts/test-cluster): use v2 flags and relative path for etcd