Radical.saga

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- hotfix to support CandidateHosts for LoadLeveler

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- Add srm adaptor - Thanks Mark!
- Add cobalt adaptor (blue gene/q) - Thanks Manuel!
- Add special case for Rhea
- Deal with timeouts.
- Don't want our jobs to restart after eviction (OSG)
- Make pty shell url configurable.
- Remove some more PBSPro remains.
- address 585
- fix 590
- check that prev_info exists before populating curr_info with its info in _job_get_info
- clean up slurm adaptor to get it fit for the split branch in RP
- fix state interpretation for pbspro
- make torque fit for rp split branch
- remove some debug logs
- some consistency fixes
- update slurm example in context of 611
- use `-o Port=%d` notation for ssh based channels
- backport ft and bulk ops for torque from osg_optimization

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- added basework_dir parameter to sge and proxy adaptors
- added new PBS versions to pbsnodes CPU count check
- changed the regular expression to find the job-id on LSF adaptor. Fixes 568
- re-enable fallback methods for slurm job containers, jd.name support for slurm
- fix for issue 586, removing invalid dirs from shell wrapper script file path
- fix parsing of file staging directives
- make shell job adaptor workdir configurable
- avoid double close for shell job service
- raise error on missing tools
- removed duplicate get_name function in job class
- add missing container method to get job states
- merged pull request 583
- enforce version in radical stack
- fix 555

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- still hating it...

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- I hate python deployment

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- hotfix: remove some debug code which causes trouble in multiuser envs