v0.3.1

This release fixes a compilation error after running cargo update after rusttype 0.9.3 was released:

error[E0599]: no method named `family_name` found for reference `&std::sync::Arc<ttf_parser::Face<'_>>` in the current scope
  --> core/src/text/font.rs:65:41
   |
65 |             rusttype::Font::Ref(f) => f.family_name(),
   |                                         ^^^^^^^^^^^ method not found in `&std::sync::Arc<ttf_parser::Face<'_>>`

Changes

• Updated rusttype to 0.9.3:
  • ttf-parser has been updated to 0.15.2.
  • Versions of rusttype are now pinned to prevent transient dependency upgrades
    breaking compilation.