arrowtype/recursive v1.071

v1.071 – Improve fi & ffi ligatures; clean up ligature metadata

on GitHub

This release is a relatively small update that:

• Matches fi and ffi ligature widths to the non-ligated sequences they replace, in order to precisely maintain line lengths between family styles (closes #431).
• Improves fi and ffi ligature shaping generally.
• Removes unnecessary ligature data from built fonts, such as undesired ligatures (ff, fl, ffl) and unused ligature variants (fi.mono, ffi.italic, etc).
• Corresponds to added ligature carets in sources (closes #310).