DARSHAN_JOBID: name of environment variable that holds the job's Id
DARSHAN_LOGPATH: og path to write darshan logs to (still needs year/month/day subdirs)
DARSHAN_MEMALIGN: value for determining if accesses are aligned in memory



git-svn-id: https://svn.mcs.anl.gov/repos/darshan/trunk@367 3b7491f3-a168-0410-bf4b-c445ed680a29