* init/tests/data/upstart-1.12.json: New test data file.
* test/test_daemon.c: New test utility.
* init/Makefile.am: Add "upstart-1.12.json".
* init/job.c:
  - Updated copyright.
  - job_deserialise(): Generalise logic to handle missing pids when
    upgrading from a version that does not support PROCESS_SECURITY and
    PROCESS_DAEMON_PARENT.
* init/job_process.c:
  - Copyright and comments.
  - job_process_terminated(): Consider job ready when daemons parent
    exits, rather than when the requisite number of forks have been
    performed (based on lp:~vorlon/upstart/lp.530779-rough-draft)
    (LP: #530779).
  - job_process_trace_new(): Corrected comment header.
  - job_process_trace_new_child(): Don't consider job ready once
    requisite number of forks have occured any more.
  - job_process_trace_fork(): Save parent process.
* init/process.c:
  - Updated copyright.
  - process_name(): Added PROCESS_DAEMON_PARENT for completeness.
  - process_from_name(): Added PROCESS_DAEMON_PARENT for completeness.
  - process_deserialise_all(): Generalise logic to handle missing pids
    when upgrading from a version that does not support PROCESS_SECURITY and
    PROCESS_DAEMON_PARENT.
  - process_type_enum_to_str(): Added PROCESS_DAEMON_PARENT for completeness.
  - process_type_str_to_enum(): Added PROCESS_DAEMON_PARENT for completeness.
* init/process.h: Comments for ProcessType (which must be kept in order).
* init/tests/test_job_process.c:
  - test_run(): New test:
    - "with daemon where parent waits for ultimate child before exiting"
  - test_spawn(): Remove temporary files.
  - test_kill(): Extra checks.
  - test_handler():
    - Remove erroneous UPSTART_LOGDIR code - not used by this test.
    - Add daemon parent checks.
* init/tests/test_state.c:
  - test_job_environ_upgrade(): Add additional checks to ensure that
    json not containing PROCESS_DAEMON_PARENT elements correctly deserialises
    into empty elements.
  - test_daemon_parent_state(): New test that checks a data file containing
    jobs with and without PROCESS_DAEMON_PARENTS can be deserialised.
* test/Makefile.am: Updated for test_daemon.
* test/test_util_common.c:
  - get_test_daemon_binary(): New function.
  - file_line_count(): New function.
* test/test_util_common.h: TIMED_BLOCK(): New utility macro.