Added job log handling and formatted the job elapsed duration.

The job now prints its duration in human-readable format.
The job logs are now created on a per-job basis as opposed to dumping
everything in server.log. After the job completes, the logs are shipped
to the logs directory of the machine where the job ran.

PRESUBMIT=passed
R=raymes,bjanakiraman
DELTA=56  (36 added, 4 deleted, 16 changed)
OCL=45676-p2
RCL=45696-p2
RDATE=2010/12/08 13:06:47


P4 change: 42606936
3 files changed
tree: 833f9683372a21210f16a0d2b672e5f47c9d2c66
  1. .git5_specs/
  2. v14/