Script janusgraph.sh fails for 0.6.x when not called from the project root

[vtslab]

The script janusgraph.sh fails for 0.6.x when it is not called from the project root.

• Version: 0.6.x
• Storage Backend: cassandra
• Mixed Index Backend: elasticsearch
• Link to discussed bug: https://lists.lfaidata.foundation/g/janusgraph-users/topic/89549434
• Expected Behavior: script can be called from any location
• Current Behavior: Script janusgraph.sh fails for 0.6.x when not called from the project root
• Steps to Reproduce: $ janusgraph-full-0.6.1/bin/janusgraph.sh start

Stack Trace (if you have one)

Follow link above to user list.