Okdata-cli

* A pipeline for transforming Excel to CSV is now offered in the dataset
creation wizard.

* The `okdata` namespace package now uses the old-style `pkg_resources`
declaration instead of being an implicit namespace package.

* The dataset creation wizard can now be used to create datasets without a
pipeline.

Breaking

* Name change
- Command changed to `okdata` from `origo`
- PyPI package name `okdata-cli`
- Repository `okdata-cli`
- Python modules moved to `okdata.cli.*` with `okdata` as an implicit namespace

Other

* `origo datasets download` is no longer presented in the `origo datasets` help
text, since the command is gone. Use `origo datasets cp` instead.

* `origo datasets create` now runs a dataset creation wizard for setting up a
new dataset complete with a processing pipeline, ready to receive files. The
`--file` parameter can still be used when you want to create a dataset from a
configuration file.

* The boilerplate command no longer prompts for an AWS account ID, dataset
edition start time, or dataset edition end time.

* The questions on dataset access rights and confidentiality have been unified
in the boilerplate questionnaire.

* The boilerplate script now uses the new `datasets cp` syntax for file
uploading.

* The status (`status`) and upload (`datasets cp`) commands now support the new
status-api format.

* A bug that made the `origo events put` command unusable has been fixed.

* All datafiles required by the boilerplate command are now included in the
package distribution.

* The `write_to_latest` flag in the boilerplate templates are now set in the
correct pipeline step.

* The boilerplate script no longer creates a dataset version explicitly, as new
datasets now include a version "1" by default.

* Support new event stream API (including updated SDK). Existing sub-commands from `events` and `event_streams` are now combined into `events`, and new commands for managing event stream sinks and subscriptions are added.

**Note:** These commands now use dataset URIs instead of separate positional arguments for dataset ID and version.

* Add `--data` option for `events put` (alterantive to stdin/`--file`).
* `~` is now expanded to the home directory in arguments to the `--file` option,
such as in `origo datasets create --file=~/Documents/my-dataset.json`.