add Vishal's master-worker code
Merge branch 'devel' into feature/master-worker
added README for Master/Worker example
Merge branch 'devel' into feature/master-worker
Merge branch 'devel' into feature/master-worker
fix typo in slurm cancel state

slurm calls it CANCELLED not CANCELED
use sacct if scontrol couldnt find the job

when a job has been in COMPLETED state for longer than a certain ammount of time,
slurm does not display it in the output of scontrol anymore. Instead it complains:
    slurm_load_jobs error: Invalid job id specified

When this happens, fallback to using sacct which has access to the full history.
updated changelog
Merge branch 'devel'
updated changelog
Merge pull request #343 from mehdix/devel

An infinite loop prevention and shell prompt fix regarding #340
slurm cfg
Merge pull request #322 from luis-rr/master

slurm get job state
Merge branch 'master' into devel
bumped version & updated changelog
fixx attrib deepcopy
simplify deep copy
fix deepcopy, again
acceept None as flag
remove tabs; fix loop detection