v0.4.0

This release contains breaking changes.

Deprecations/Removals:

• #[use_attr] has been removed
• #[use_proc] has been removed
• pretty_print feature has been removed. For a better alternative see my proc-utils crate.
• Ability to access #[export_tokens] that would normally be inaccessible due to private modules or inaccessible path has been removed

New Features

• #[import_tokens_proc] and #[import_tokens_attr] now no longer need #[use_attr] and #[use_proc] to be brought into scope properly or re-exported, thanks to a new self-calling macro structure.
• The MACRO_MAGIC_ROOT/mm_override_path can now also be overridden on #[import_tokens_proc] and #[import_tokens_attr] by passing a path or an expr (the expr option is new). The expr must evaluate to something compatible with Into<String> and must contain a valid path to a macro_magic re-export.
• New expansion strategy for #[export_tokens] which allows for multiple items with the same name in the same crate (but not at the same path) and enables streamlined importing and re-exporting of macros created via macro_magic,
• Improved docs for internal items in the core crate
• Improved docs for custom parsing
• Additional doc examples