Merge pull request common-workflow-language#304 from common-workflow-…

…language/java_codegen_3

Random assorted cleanups for Java codegen

Merge pull request common-workflow-language#299 from jmchilton/java_c…

…odegen_iter

Iterate on Java codegen

Merge pull request common-workflow-language#285 from common-workflow-…

…language/fix-internal-links

Fix typo breaking internal links

Merge pull request common-workflow-language#283 from common-workflow-…

…language/refactor-SourceLine-makeLead

Refactor SourceLine#makeLead

base_url parameter to urljoin shouldn't be optional. (common-workflow…

…-language#279)

* base_url parameter to urljoin shouldn't be optional.

* Update metaschema for type hint fix

* Make flake8 happy with metaschema.py

* exclude metaschema.py from black

allow LineCol data to be absent (common-workflow-language#274)

switch to the Black code formatter (common-workflow-language#269)

* add basic contributing guidelines
* prefer new style format strings
* sort the inputs

Bump version (common-workflow-language#259)

Bump version (common-workflow-language#256)

Document 1.1 (common-workflow-language#251)

* Update schema salad specification for 1.1

* Add an example schema to the README

* Describe validation process.

* Improve discussion of "short names" and vocabulary.

* Document 'Expression' special case.

* Add section about inheritance and specialization.

* Be more precise about which parts of YAML we use.