5.2
Vertically-aligned colons, greater/less signs (closes #980, closes #1061)
Extracted other features and classes into separate files, fixed few ligatures conflicts with arrows
Fixed monospace property broken by adding threeemdash #1073
Added `//=` `=//` `=//=` (closes #816)
Numbersign sequences #1014
Fixed arrows next to lowercase letters (closes #1049 closes #1059)