Bugs Fixed

• format/[2,3]: bug affecting format specs ~g and ~G.
• read_line/2: was not steadfast.
• call_cleanup/2: the cleanup goal didn't preserve pending exceptions.
• load_files/[1,2]: could sometimes attempt to load a file of the wrong type.
• Switching on the debugger in an embedded command in a file loaded with the -l option didn't work.
• save_program/[1,2] would give a foreign resource existence error if called multiple times.
• Problems with ISO mode and some library modules.
• library(comclient): fixed several problems.
• system:file_property/2 now accepts terminating slash or backslash in directory names.
• Fixed several problems when file-names, working directory or home-directory contains non-ASCII character.
• library(clpfd): could fail to unblock blocked goals; indexical propagation bug; bugs in disjoint1/2 and disjoint2/2 with margin/3 resp. margin/4 option.
• Win32 memory allocator could leak (uncommitted) memory in SP_initialize.
• SP_deinitialize would not free all memory.