Release 0.5.1

Added

• PR#188 added the ability to ignore transitive dependencies via the ignore-transitive-dependencies config flag. Thanks @haraldreingruber!
• PR#188 added a crates property to the handlebars context, see the about_list_by_crate_example for how it can be used. Thanks @haraldreingruber!

Changed

• PR#189 updated dependencies, notably regex to fix an advisory.