If there's no translated PDF or the translated PDF fails and the item
has a DOI, check Zotero's Unpaywall mirror for possible sources and try
to download one of those.
Unlike with "Add Item by Identifier" and "Find Available PDF" in the
item context menu, this does not try the DOI/URL page, since it would
result in more data leakage and most of the time you'd be saving from
the DOI page already. We could consider offering it as an option, but
for it to be useful, you'd have to have an institutional subscription,
be on-campus or connected via VPN (for now), and be saving from
somewhere other than the main page.
A new connector endpoint, sessionProgress, takes the place of
attachmentProgress. Unlike attachmentProgress, sessionProgress can show
new attachments that have been added to the save, and with a little more
work should also be able to show when a parent item has been recognized
for a directly saved PDF.
This also adds support for custom PDF resolvers, available to all PDF
retrieval methods. I'll document those separately.
Closes#1542
* Remove gulp, replace with custom scripts
* Symlink entire dirs where possible (fixes#1232)
* Significantly speed up subsequent builds (fixes#1238)
* Watch process now observes new/removed files, not only changed
* Add ignoreMask, exclude all files with names starting with a #
* Better logging during builds
* Update travis.yml to use new, non-gulp-based build
* Use mocha, chai & sinon from the npm. As of sinon 2.0
sinon-as-promised is no longer required so it is removed
* Tweak code to re-use the same loader with the same environment
throghout the code
* Introduce browserify step for testing tools that only provide
node-compatible libraries (sinon, chai-as-promised)
* Introduce copy step for test data to resolve multiple issues with
tests depending on files not being symlinks
* Re-introduce custom implementation of setTimeout to resolve issues
with few tests
* Re-introduce custom Bluebird Promises config & monkey patch
* Add a multi-process, gulp-based build system to support es6 features,
async/await, jsx and scss
* Add a package.json to support dependency management and allow starting
the build process via npm
* Replace embedded Bluebird library with npm-installed one
* Add react, react-dom and web-library
* Introduce a custom require() loader in include.js as well as a minimal
local require() implementation in various other places
