1.1.0 — store_layout and direct access to the vtable

• Fixed output when using the macro on a trait with a 'static bound while also using marker traits.
• Documentation now includes a detailed description of the output produced by the macro, for reference.
• The vtable of a boxed thin trait object can be accessed directly using the new vtable() method, which will return a reference to the vtable.
• A new configuration option, store_layout, was added, which add two fields, size and align, to the vtable, which store the size and the preferred alignment, respectively, of the underlying type.