hotfix: Applied hotfix post release 0.1.11. Added support for relative input paths.

After some more testing yesterday, I figured out that rTEL does not support relative input paths, because we do change the working directory as part of the workflow to cater the needs of Philosopher. This PR hopefully solves the problem. FYI, I have tested eTEL and mTEL modules and they both accept absolute and relative input paths.

ref: #1 (closed)