4.1.0-beta.0

• Add generated docs before releasing the beta. (77739c5)
• Merge pull request #1473 from AaronDavidNewman/vex-1459-2 (f1aa8ad)
• fix pitch-sorting (5a56691)
• Merge pull request #1472 from rvilarl/rename/metrics (77ad0ff)
• Merge pull request #1471 from AaronDavidNewman/vex-1459-2 (b51ed60)
• single quotes (1f72cac)
• rename js to ts (ead03e0)
• Same bug in ChordSymbol (9072064)
• issue 1469 (e5da437)
• Merge pull request #1468 from AaronDavidNewman/vex-1459-2 (e2665fc)
• annotations stack up more tightly, only padding between them. (33bc6b5)
• add default metrics and more TextFormatter test cases (a779bfb)
• annotation: get actual y of string not max. (03734e8)
• Annotation and stavesection use text formatter. (3aba7e8)
• Merge pull request #1462 from AaronDavidNewman/vex-1459-1 (939d5c5)
• Merge pull request #1453 from rvilarl/fix/1452 (648d478)
• Use flag metrics to get the width of the flag. (5e1903e)
• Merge pull request #1460 from rvilarl/fix/1458a (68972a1)
• Merge pull request #1457 from rvilarl/fix/1451 (7ba1546)
• Make stavetempo use text formatter and not getBBox (21673fe)
• move rounding to SVGContext (5470032)
• styles refactored to consider groups (1683e3a)
• Merge pull request #1456 from rvilarl/refactor/applystyle (443cf22)
• Merge pull request #1434 from rvilarl/refactor/system3 (6792351)
• fix applyStyle calls location (e42cc71)
• Merge pull request #1444 from rvilarl/fix/1443 (c73a0b2)
• Merge pull request #1455 from rvilarl/fix/1454 (70e1761)
• resolve Canvas2D warning (68e33d4)
• include Gonville noteheadCircleX (ce43b32)
• remove reassignment of fillStyle and strokeStyle in tests (de50adc)
• Add API docs produced by 'grunt'. (cd22386)
• Remove build/ after releasing version 4.1.0-alpha.0 to npm and GitHub. (3bf7a87)
• refactor Element.attrs as map of strings (547d24a)
• minimal crossbeam support (95370b3)
• add cross-stave test case file, and some test cases (7b96443)
• add cross stave support (44477eb)