…nto enhance/return-codes

* 'enhance/return-codes' of github.com:kcathey/maestrowf:
  Fix status.csv 'State' column writeout. (llnl#127)
  Updated Exception.message references to Exception.args (llnl#125)
  Additional debug logging for the Flux Spectrum Adapter (llnl#122)
  Add the generation of metadata to Study construction. (llnl#120)
  Updated the LULESH examples to use the LULESH git repository for cloning the repo (llnl#121)
  Tweaks and addition of starting to SpectrumFluxAdapter. (llnl#119)
  Refactor of the Study class to breakdown complex APIs (llnl#118)

* Update setup.py to 1.1.3dev

* Updated the getting started documentation

* Added examples for running both lulesh specs

* Flux for Spectrum bugfixes (#116)

* Additional arguments can be passed through batch.

* Correction of the use of extend to append.

* Removal of OMPI vars from env.

* Reversal of env altering.

* Addition of mpi exe to batch.

* Removal of -gpu flag

* Addition of "allocated" to PENDING set.

* Correction of the check_status method call.

* Correction of the Flux import

* Addition of the EnvironmentError to try/catch for check_status.

* Addition of jobid to submission INFO logging.

* Workflow setup fix (#117)

* Fixed a workflow setup issue caused by spaces in the spec name

* Additional dirname formatting

* Refactor of the Study class to breakdown complex APIs (#118)

* Minor docstring correction.

* Change to study setup API to break out workspace creation.

* Update Maestro frontend to use new Study method.

* Renamed Study.setup to be better communicate its functionality.

* Correction to style for configure_study method.

* Moved environment application to add_step.

* Split out acquiring environment elements to its own method.

* Updates to staging checks.

* Renamed _setup_linear and _setup_parameterized from setup to stage for clarity.

* Tweaks and addition of starting to SpectrumFluxAdapter. (#119)

* Updated the LULESH examples to use the LULESH git repository for cloning the repo (#121)

* Add the generation of metadata to Study construction. (#120)

* Addition of method and tweaks to support metadata.

* Addition of call to the method for generating metadata.

* Correction to encode YAML string for py3 compatibility.

* Another attempt at py2-py3 compatible encoding.

* Addition of load_metadata method.

* Additional debug logging for the Flux Spectrum Adapter (#122)

* Additional logging for debugging of the adapter.

* Additional logging.

* Updated Exception.message references to Exception.args (#125)

* Fix status.csv 'State' column writeout. (#127)

* #107 Enhance/return codes (#128)

* #107 Added StudyStatus enumeration
Changed DAG execute_ready_steps to return StudyStatus enum instead of a boolean
conductor and maestro also accept StudyStatus and convert to return value

* #128 fixed issues found in pull request

* #107 added inline comments per PC

* #107 pulling out _check_study_completion
to avoid initial implementaion copy and paste error

* #107 fixed line length issue

* Bugfix that would cause the ExecutionGraph to not update when cancelled. (#131)

* Addition of custom parameter generation when running studies. (#129)

* Command line parameter for custom ParameterGenerators.

* Addition of sample custom parameter generation.

* Correction to missing parameters in SIZE.

* Addition of utility method for importing custom gen py files.

* Correction of syntax.

* Conversion of DOS newlines to Unix.

* Addition of call to check for custom code.

* Correction of a bad docstring.

* Addition of parameter metadata to Maestro.

* Addition of parameters to study metadata.

* Addition of copying of the parameter file to study workspace.

* Correction to a bug for attempting a restart when a restart isn't specified. (#133)

* Initial fix for steps that cannot restart.

* Comments to clarify logic.

* More flexible ExecutionGraph description API and logging of description. (#137)

* Tweaks to how the ExecutionGraph adds descriptions. Added logging.

* Updated study to use the new API and some minor refactor.

* Fixed #134

* Fix to Variable verification. (#138)

 Fixes #123

* Updates to Maestro documentation (#114)

* Updates to the README.

* Added initial getting started example documentation

* Addition of Quick Start documentation. (#130)

* Addition of Quick Start.

* Addition of cancellation status example.

* Corrections to quick start and fix for build errors.

* Addition of a LULESH study specification with heavier comments. (#132)

* Start of a LULESH spec that's commented.

* Addition of explanation of step structure.

* Additional comments about steps and dependencies.

* Minor tweaks to comments.

* Addition of parameter block comments.

* Addition of reference to launcher_token YAML

* Tweaks and edits based on feedback.

* Throttled workflows push steps into the ready queue multiple times. (#136)

* Moved 'mark_submitted' into ExecutionGraph 'execute'

* Conversion of ready_steps deque to use step names.

* Capping the available slots to the length of ready_steps.

* Fixes Popen output to use universal newlines. (#143)

* Addition of a shell util to centralize process creation settings.

* Switch to start_process method.

* Addition of docstring for start_process.

* Update to fix universal newline from false to true.

* Addition of a check for a list and a hard set of shell to False.

* Made conductor launch command a string.

* Fix behavior of start_process for localscriptadapter.

The shell=False flag was not being passed, nor were the env or cwd
arguments being used in the actual function.

* Clean up of start_process

* Cleans up GitDependency errors to not rely on return codes. (#144)

* Addition of a ping method.

* Tweaks to error logging.

* Moved specific existence exception out of return code check.

* Cleanup of some merge characters.

* Tweak for connectivity checking.

* Addition of info to the error message.

* Removal of git return codes since they don't mean anything.

* Update version number to 1.1.3.