Corrected errors of failing XROOTD-WAN-rm, corrected masked errors
- XROOTD-WAN-rm always failed since the wrong URL was built (still used the no longer existing separate WAN URL that Fabio's dcache installation used)
- The xrd tests were always failing, but since xrd even then returns 0, the errors were not caught. Replaced by xrdfs
- removed whole complexity of separate LAN/WAN paths. Current PSI dcache exposes full path hierarchy on both endpoints.
- cleaned script for clarity