Rename schedule to outline

Functions deprecated (warning added):

get_one_scheduled_kernel->get_one_outlined_kernel

New names of functions that were not deprecated (should any of the old functions represented in this list be kept around with a deprecation warning?):

loopy/target/execution.py:    def get_typed_and_outlined_kernel_uncached(self, arg_to_dtype_set):
loopy/target/execution.py:    def get_typed_and_outlined_kernel(self, arg_to_dtype_set):
loopy/outline/device_mapping.py:def map_outline_onto_host_or_device(kernel):
loopy/outline/device_mapping.py:def map_outline_onto_host_or_device_impl(kernel, device_prog_name_gen):
loopy/outline/__init__.py:def gather_outline_block(outline, start_idx):
loopy/outline/__init__.py:def generate_sub_outline_items(outline, start_idx):
loopy/outline/__init__.py:def outline_item_to_insn_id(outline_item):
loopy/outline/__init__.py:def dump_outline(kernel, outline):
loopy/outline/__init__.py:def generate_loop_outlines_internal(
loopy/outline/__init__.py:def generate_loop_outlines(kernel, debug_args={}):
loopy/outline/__init__.py:def generate_loop_outlines_inner(kernel, debug_args={}):
loopy/outline/__init__.py:def _get_one_outlined_kernel_inner(kernel):
loopy/outline/__init__.py:def get_one_outlined_kernel(kernel):
loopy/outline/tools.py:def add_extra_args_to_outline(kernel):
loopy/codegen/control.py:def generate_code_for_outline_index(codegen_state, outline_index):
loopy/check.py:def pre_outline_checks(kernel):
loopy/check.py:def check_that_all_insns_are_outlined(kernel):
test/test_loopy.py:def test_unoutlined_insn_detection():