when running make rhinojs fails due to a missing cp command

cp rhino/buildGradle/libs/rhino*.jar rhino.jar
usage: cp [-R [-H | -L | -P]] [-fi | -n] [-apvXc] source_file target_file
       cp [-R [-H | -L | -P]] [-fi | -n] [-apvXc] source_file ... target_directory
make: *** [rhino.jar] Error 64

Issue was resolved by manually copying one of the jars

`cp rhino/buildGradle/libs/r

Is your feature request related to a problem or area of OpenRefine? Please describe.

When previewing an importer's results, there is a text field to enter the project name. When pressing Enter in this field, I would expect the project to be created (without having to click the "Create Project" button).

![image](https://user-images.githubusercontent.com/309908/91545213-1a244a80-e921-11ea-

https://www.audiomack.com/data-api/docs

See starter code in #681

This feature would be needed for at minimum the CelebA dataset.

Nested structures could be stored on disk and documented in schema in a "flat" way, but have nesting in as_dataset and in the FeatureDict (for data gen). Whenever applicable, nesting / un-nesting should be consistent with [`tf.contrib.framework.nest.

I am aggregating some events for 7 days from a partitioned table, and want to use mockTable for integration tests of my SQL.
SELECT flight_id AS flightId, campaign_id AS campaignId, ad_format FROM ad-selfserve.ad_platform_services.clean_flights_* WHERE _TABLE_SUFFIX >= $START_DATE AND _TABLE_SUFFIX < $END_DATE)

tests:
`
val CLEAN_FLIGHTS_TABLE_REF = "ad-selfserve:ad