Fix error with missing file open mode property in file "applicator/dispatch/open.c"
Define static int variable "DEBUG_CYBOP" in file "log_setting.c", to be used for debug log messages in certain parts of code
Check cybol "flow/loop" break property in file "part_handler.c" in order to be able to leave a loop at each step in cybol
Stack Variables:
Add new format "element/reference" to store a pointer to a part or property as stack variable, which is important for recursion
Allocate new part for each stack variable instead of just copying pointer references
Avoid thereby unwanted manipulation of original property values in knowledge memory (heap)
Remove manual deallocation of stack variables in file "part_pop_handler.c", since they get deallocated automatically by garbage collection when removing them from stack memory
Move stack handling from directory "controller/handler/" to "executor/stacker/" with sub directories "pusher" and "popper"
Store stack variables in file "handler.c" instead of in "part_handler.c", so that they are considered in path call chains
Use function "get_name_array" instead of "get_part_name" (resolving path) in flow applicators that call the handle function, so that runtime argument properties of the path (and not tree node) are considered
xDT (German medical exchange format) Deserialiser:
Reactivate xdt field description serialiser
Skip whitespace between fields
Correct wrong length of some constants
Replace usage of file "end_field_xdt_selector.c" with "newline_selector.c"
Provide decoder for dos code pages 437 (ibm pc) and 850 (IBM850) as character set