Major enhancements to all multi-core code, bug fixes, performance improvements, etc.

fix to not print an error is the timeout is being increased by the forwarding logic instead of the user.  tests agains the original timeout instead of the pumped up timeout for the underlying layers in the tree it has to go to.

slurm_init_slurm_msg is replaced by slurm_msg_t_init and slurm_msg_t_copy.

slurm_msg_t_init COMPLETELY initializes the structure, so it needs to be
called BEFORE setting any variables within the structure.

It is not clear if slurm_msg_t_copy is even necessary, it is only used
in three places.

removed convert_to_kilo replaces with convert_num_unit which will only convert the number in bluegene mode.