• moving from Travis to Github Actions for CI
• fixing issues with numpy.arrays provided as input fields
• adding a combiner option for dotfiles and graphs plots
• refactoring the input classes (adding FunctionSpec)
• adding MultiInpObj and MultiOutObj for a possible types in input/output_spec
• fixing copyfile_workflow
• setting proper Workflow.output_spec using tasks' output_specs
• setting output_dir as a parent directory for all files created using the output templates
• adding requires key to output_spec's metadata in order to set conditions for creating a specific output field
• adding input_spec and output_spec as class attributes that could be rewritten in the init or in the child classes