fd_reader/writer more robust: no dependency on 'int *fd' to be live
while the reader/writer is in use).

a writer directly.

labcomm_encoder/labcomm_decoder into labcomm.c

indirection in generated C-code.

Updated wiki_example to use StreamReader. 

labcomm_encoder_ioctl_)

  corrected encodeBoolean
  changed encodePacked32
  added a flush to end() method

lib/csharp/se/lth/control/labcomm/LabCommDecoderChannel.cs:
  corrected struct handling
  corrected readInt
  changed decodePacked32  

  put delimiter first in typeinfo to simplify parsing
  and not assume what delimiter should be used for
  various languages (was broken for C#)

compiler/CS_CodeGen.jrag:
  corrected handling of variable sized arrays (int -> packed32)

compiler/Python_CodeGen.jrag:
  added signature list