Radical.entk

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- Documentation updated, PR 453, 451, 450, 446
- Shared data fix 449

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- Early assignment of UIDs 435
- Improved profile handling consistency 434

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- Documentation Update
- Instructions with Python 3
- Fix of API reference pages
- Travis CI updated, removing unnecessary tests, updating flake8/pylint
- Workaround for EnTK deadlock on non-trivial pipeline counts. 410

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- transition to Python3
- add `appman.outputs` (symmetric to `appman.shared_data`)
- RMQ Auth (username/password) 379
- Global TOC on sphinx navigation sidebar 390
- fix for resume/suspend 376

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- forgot to merge :-P

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- fix test setup
- Fix documentation
- adaptivity examples updated, post_exec is callable now
- add dict initialization for tasks
- write all workflows in session description
- battle test resource issues
- fix channel cleanup/restart
- fix workflow writer (again)