Update to LilyPond 2.18
Several pitch edits to align with Breitkopf, added maintainer's note
Updated mutopiatitle, tagline
Converted to 2.18, reviewable pdf created
Final cleanup.
Spread staff vertically to fit several large cross-staff grace notes.
End-of-line Spaces removed.
Post 2.18 convert-ly
Final cleanup
Use \crossStaff{..} instead of extending stems
Normalize ties
Add date, update source
Update source, mutopia title, and date
Update source, mutopia title, and date
Merge branch 'mozart-kv457' of https://github.com/glenl/The-Mutopia-Project
Merge branch 'mozart-kv457-2' of https://github.com/glenl/The-Mutopia-Project
Merge branch 'mozart-kv457-3' of https://github.com/glenl/The-Mutopia-Project
Update Mutopia footer