on remote X connections and we provide the \\use_qimage preference
variable, which brings back the old way of painting (when set to false).
-- BibTeX errors are now processed and cause the document to fail
- compilation. Before, these errors were ignored, which means that it
- may happen that documents that did compile with a previous version
- do not compile anymore with LyX 2.1.x. To solve this, one needs to
- fix the offending BibTeX errors in the document.
-