1.5.0

Updates:

• HTMLExporter constructor now exclusively uses keyword args.
• Add support for multiple top-level address maps. (#13, #14)
• Show reserved fields and addresses in tables.
• Render RDLFormatcode in name properties. (#11)
• Add option to export signal tables. (#8)
• Add several new keyboard shortcuts, Add shortcut help reference card. (#15)
• Fix bad array suffix in multi-dimensional arrays.
• Fix quirk where sidebar doesn't scroll item into view.