* dev/update-copyright-headers: New script.
	Use it to update the copyright headers of...
	* dev/nolimips.py, dev/nolimips.xml, doc/inst-set.texi.gen.py,
	* lib/Makefile.am.tmpl, src/common.hh, src/inst-tasks.cc,
	* src/inst-tasks.hh, src/inst/data_section.cc,
	* src/inst/data_section.hh, src/inst/data_section.hxx,
	* src/inst/exp-visitor.hh, src/inst/exp.cc, src/inst/exp.hh,
	* src/inst/exp.hxx, src/inst/inst.cc, src/inst/inst.hh,
	* src/inst/inst.hxx, src/inst/int_exp.cc, src/inst/int_exp.hh,
	* src/inst/int_exp.hxx, src/inst/label.cc, src/inst/label.hh,
	* src/inst/label.hxx, src/inst/label_exp.cc,
	* src/inst/label_exp.hh, src/inst/label_exp.hxx,
	* src/inst/nodes.gen.py, src/inst/nodes.mk.gen.py,
	* src/inst/op_exp.cc, src/inst/op_exp.hh, src/inst/op_exp.hxx,
	* src/inst/program.hh, src/inst/program.hxx,
	* src/inst/program_builder.cc, src/inst/program_builder.hh.gen.py,
	* src/inst/program_builder.hxx, src/inst/program_solver.gen.py,
	* src/inst/program_solver.hxx, src/inst/register.hh,
	* src/inst/register.hxx, src/inst/section.cc, src/inst/section.hh,
	* src/inst/section.hxx, src/inst/text_label.cc,
	* src/inst/text_label.hh, src/inst/text_label.hxx,
	* src/inst/text_section.cc, src/inst/text_section.hh,
	* src/inst/text_section.hxx, src/misc/contract.hh,
	* src/misc/counted_ptr.hh, src/misc/deref.hh, src/misc/escape.hh,
	* src/misc/has.hh, src/misc/lexutils.cc, src/misc/lexutils.hh,
	* src/misc/lockable.hh, src/misc/readline.hh,
	* src/misc/select_const.hh, src/misc/table.hh,
	* src/misc/test-unique_string.cc, src/misc/unique_string.cc,
	* src/misc/unique_string.hh, src/modules.hh,
	* src/nolimips-tasks.cc, src/nolimips-tasks.hh, src/nolimips.cc,
	* src/parse-tasks.cc, src/parse-tasks.hh,
	* src/parse/asm-parse.yy.gen.py, src/parse/asm-scan.hh,
	* src/parse/asm-scan.ll.gen.py, src/parse/fwd.hh,
	* src/parse/libparse.cc, src/parse/libparse.hh,
	* src/shell-tasks.cc, src/shell-tasks.hh, src/shell/cmd.hh,
	* src/shell/cmd.hxx, src/shell/shell.cc, src/shell/shell.hh,
	* src/shell/shell.hxx, src/task-tasks.cc, src/task-tasks.hh,
	* src/task/boolean_task.cc, src/task/boolean_task.hh,
	* src/task/function_task.cc, src/task/function_task.hh,
	* src/task/int_task.cc, src/task/int_task.hh, src/task/libtask.hh,
	* src/task/string_task.cc, src/task/string_task.hh,
	* src/task/task.cc, src/task/task.hh, src/task/task.hxx,
	* src/task/task_register.cc, src/task/task_register.hh,
	* src/task/task_register.hxx, src/vm-tasks.cc, src/vm-tasks.hh,
	* src/vm/cp0.hh, src/vm/cp0.hxx, src/vm/cpu.cc, src/vm/cpu.hh,
	* src/vm/cpu.hxx, src/vm/fwd.hh, src/vm/memory.hh,
	* src/vm/memory.hxx, src/vm/mmu.hh, src/vm/mmu.hxx,
	* src/vm/nolimips_system_library.cc,
	* src/vm/nolimips_system_library.hh,
	* src/vm/nolimips_system_library.hxx, src/vm/segment.hh,
	* src/vm/segment.hxx, src/vm/spim_system_library.cc,
	* src/vm/spim_system_library.hh, src/vm/spim_system_library.hxx,
	* src/vm/system_library.cc, src/vm/system_library.hh,
	* src/vm/system_library.hxx, src/vm/virtual_machine.cc,
	* src/vm/virtual_machine.hh, src/vm/virtual_machine.hxx:
	...these files.