from  Benoît Perrot  <benoit@lrde.epita.fr>

	* src/task/task.hh, src/task/task.cc:
	Split in...
	* src/task/function_task.hh, src/task/function_task.cc,
	* src/task/libtask.hh:
	These new files.
	* src/task/Makefile.am:
	Distribute new files.
	* src/task/task-tasks.hh, src/shell/shell-tasks.hh,
	* src/parse/parse-tasks.hh, src/nolimips-tasks.hh,
	* src/inst/inst-tasks.hh, src/vm/vm-tasks.hh:
	Include libtask.hh instead of task/task.hh