Signed-off-by: Tibor Simko <tibor.simko@cern.ch>

* Reorganises directory structure to code and results.
  (closes #31)

* Simplifies main documentation.

Signed-off-by: Jan Okraska <jan.okraska@cern.ch>

* Adds the serial workflow specification and amends documentation
  accordingly (closes #25 and #29).

Signed-off-by: Dinos Kousidis <dinos.kousidis@cern.ch>

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>

* Add CWL workflow

* Switches to ``python:2.7`` environment in the workflow definition, following
  the documentation. (Note that ``reanahub/reana-demo-helloworld`` is no longer
  necessary and have been removed on Docker Hub.)

* Improves documentation wording.

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>

* Moves ``environment/...`` to ``environments/python/...`` in order to better
  hint at a possibility of having several different environments in an analysis.

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>

Reviewed-by: Tibor Simko <tibor.simko@cern.ch>

* Refactors directory structure of the hello world example to separate more
  clearly the code, the environment, the inputs, the outputs. (closes #16)

* Adds an input file with the names of the persons to greet to simulate input
  data file, making the example a little bit more realistic.

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>

* Adds the initial Travis CI recipe that builds the "hello world" example's
  Docker image and tests whether it works OK.

* The tests faithfully follow the docker-build-and-run steps presented in the
  README documentation. Moreover, the workflow definition (the Yadage YAML file)
  is also validated.

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>

* Removes unnecessary files, environment variables, copyright messages etc in
  order to simplify the hello world example. Adds documentation.

* Amends program parameters and removes unnecessary environment variables.

* Renames yadage workflow spec file to match the example name.

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>

Signed-off-by: Diego Rodriguez <diego.rodriguez@cern.ch>

* Adds output as it is mandatory by yadage schema. (closes #8)

Signed-off-by: Diego Rodriguez <diego.rodriguez@cern.ch>

* simplify helloworld example

Signed-off-by: Harri Hirvonsalo <harri.hirvonsalo@cern.ch>

Signed-off-by: Diego Rodriguez <diego.rodriguez@cern.ch>

* add initial Sphinx documentation structure, with license,
  authors, etc. (closes #1)
* add initial Travis CI configuration and tests
* add copyright header messages to each source code file

Signed-off-by: Harri Hirvonsalo <harri.hirvonsalo@cern.ch>

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>