Merge branch 'release/v3.1.56' into develop
Revert "Prevent the build tool from bundling biblio."

This reverts commit d08efee608cf6294ea177cba12844b3d5d436165.
Revert "Remove now unnecessary support for previous-versions."

This reverts commit 7b797eb61071544ba91787d580cf81c234188ebb.
Revert "Remove previousVersion support from local biblio."

This reverts commit 872e6301f2b97d854549240aaaae37be4ee3a557.
Revert "First pass at using an API for spec references."

This reverts commit a97ac1ddaf11d560472d95207b6759ab0495b2ed.
ignore local dev files
v3.1.57
Merge branch 'release/v3.1.57' into gh-pages