+2009-12-10
+ * fixed bug with steel exit being destructible during opening phase
+ * added token "special_flags" to "levelinfo.conf" (currently with the
+ only recognized value "load_xsb_to_ces", doing the same as the flag
+ "-Dload_xsb_to_ces" on the command line, but as a permanent flag for
+ converting all elements in native (XSB) Sokoban level files to CEs)
+