Remove (optional) and (requried) from field labels (eclipse-pass#41)

Also use proxy for initial build and tests

Require 'authors' property in J10P schema again

Conditionally show Embargo-end-date field (eclipse-pass#35)

Add the ability to merge schemas into a single union schema (eclipse-…

…pass#33)

* Implement schema-specific merging algorithm

Simplified based on assumption of being JSON-based, and having
fields where conflicts are tolerable, e.g. "title", "$comment", etc

* Verify schema validation for merged schemas

* Add and test API exposure of merging

Also adds a configuration param and env var to force schema merging for
all requests

* Update README regarding schema merging

Merge pull request eclipse-pass#30 from OA-PASS/required_author

Required author semantics and display

Address form layout for Alpaca (eclipse-pass#29)

* Update layout for Alpaca

* Remove some debugging stuff

Merge pull request eclipse-pass#28 from birkland/issue-25

 Update NIHMS schema for nlmta or (some issn with pubType)

Update README

Add required property to jhu global schema (eclipse-pass#24)