updated contrib scripts to work with latest code

contrib/playerInspect.py

@@ -1,10 +1,11 @@
-import sys
-
 """
 Very basic player.dat inspection script
 """
 
-sys.path.append(".")
+import sys, os
+
+# incantation to be able to import overviewer_core
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.split(__file__)[0], '..')))
 
 from overviewer_core.nbt import load
 from overviewer_core import items