Release 2.3.0

Fast, Nimble PDF Writer for Ruby. Contribute to prawnpdf/prawn development by creating an account on GitHub.This is release includes one new exiting feature: OTF fonts support. You can use them exactly as you'd use TTF fonts. Thanks for this to @camertron.Another notable change is the list of supported Rubies. Since last release a few new versions came out and a few reached their EOL.Other than that a number of bugs have been fixed. See Changelog for the details.