Fix submission to gpu queues removing memfree and hvmem settings (causing issues with virtual memory allocation)

Also 'submitted' (e.g. stopped, but not queued) jobs are now resubmitted by default; small bug fixes.

Implemented resubmission of jobs to another queue; enabled jman's --job-ids parameter to be more sophisticated; listed command line is now wrapped with '' e.g. to allow directories with spaces; local jobs can now be run with priority; added warning when queue combination is not valid (and jobs will never execute); fixed small bugs.

Added possibility to use Idiaps multi-thread queues; Added a '--long' option for jman list; Fixed bugs in re-submitting jobs.

Improved behavior of 'jman ls' and 'jman del' commands; added more informative output during scheduler run.

Added support for --stop-on-failure option; bug fixes in the local scheduler; updated documentation; small improvements.

Added functionality to re-submit jobs; some bug fixes; added first unit test (so far it tests local execution only).

Added a job manager that executes jobs in parallel on the local machine; use jman -l to enable; This feature is still under development and might be buggy.