Map U. F. O. version values to the native FontForge version string.
Preserve glif names.
Stop reversing the order of references and anchors when importing U. F. O..
Add multi-layer U. F. O. output.
Avoid exporting the default background layer if it's completely empty and was not listed in the input U. F. O..
Make lib data in U. F. O. glyphs layer-specific.
Fix a few problems revealed during testing.
Merge branch 'master' into ufo_fontinfo_missing_entries_1
Fix a problem with dropped references.
Handle missing references in U. F. O. when there is no previous reference.
Try to preserve corner status when dealing with U. F. O..
Add xHeight and capHeight.
Add support for styleMapFamilyName in U. F. O..
Fix a leak when dealing with xHeight and capHeight.
Disable sorting of references in U. F. O. output.
Write control points to U. F. O. even for linear curves.
Emit postscriptForceBold if extant in U. F. O. output.
Fix tag spelling.
Emit layer data for a SplineChar in an S. F. D. if it has any layer-specific data, including pickled Python data.
When reading an S. F. D. lacking shape data, don't trigger legacy SplineSet handling on non-spline things.