v2.0

• Add missing PDF metadata to cheatsheet.pdf and cheatsheet-whistle.pdf
• Move some some 'The's to the end of titles. This is the agreed style, even if I'd forgotten it. abcm2ps recognises this style and 'unrolls' it.
• Use custom sorting to include tunes in tunebook or title order in different PDF outputs
• Add an index to tunebook.pdf

v1.2

• Fix some incorrect X: headers
• Rework how the aggregate .abc files get created

v1.1

• Add missing 2203_haste-to-the-wedding.abc

Initial release

All tunes present, but probably with errors