Recipe

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* Set bucket default label to "Not found"
* Use sureberus to validate lookup is a dictionary if present in Dimension config
* Fix to ensure pagination page is 1 even if there is no data
* On shelf construction, create InvalidIngredient for ingredients that fail construction

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* Ignore order_by on a recipe if the ingredient has not been added to the dimensions or metrics.
* Allows case insensitivity in "kind:" and support "kind: Measure" as an alternative to "kind: Metric"
* Fix like/ilike and pagination_q filtering against dimensions that have a non-string ID.
* Fix parsed sql generation for AND and OR
* Fix parsed sql generation for division when one of the terms is a constant (like sum(people) / 100.0)
* Adds IS NULL as a boolean expression
* Adds "Intelligent date" calculations to allow more useful date calculations relative to current date

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* Ignore order_by if ingredients have not been added
* Support measure as a synonym for metric and be lenient about capitalization
in shelf config

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* Support graceful ingredient failures when ingredients can not be constructed from config.

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* Fix a pg8000 issue

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* Extend grouping strategies so recipes can also order by column labels
* Create a new shelf configuration that uses lark to parse text into SQLAlchemy.