schema_salad 7.0.20210124093443 ; codegen improvements + more

schema-salad-tool --codegen improvments

javacodegen: Fix exception handling of enum loader. #348 @jmchilton
javacodegen: generate Java 8 compatible code #352 @jdidion @mr-c
java and python codegen: cwl-v1.1 support #358 @leipzig @mr-c #360 @mr-c #362 @mr-c
pycodegen: add load_by_yaml function #361 @mr-c
javacodegen: implement fetchText & ExpressionLoader #372 @mr-c
pycodegen: Raise validation exception if element in list of URIs is not a string. #368 #370 @tetron

misc

enable mergify.io #365 @mr-c
pyupgrade to 3.6 syntax #363 @mr-c
Fix minor typos #366 @joshmoore
Rdflib 5.0.0 support #373 @Panaetius @mr-c