* markedjs#1239, markedjs#1262: Escapedpipes
* markedjs#1303: add hard line break when backslash at EOL
* markedjs#1135: update the list of markdown escapes, per commonmark
* markedjs#1224: fix unsafe heading regex
* markedjs#1023: new blockquote rule: match any paragraph-like content up to next line
* markedjs#1245: GFM table compliance
* markedjs#1013, markedjs#1181 fix backticks in inline code and em
* markedjs#1351: fix emphasis closing by single _
* markedjs#1034: make autolinks compliant
* markedjs#1387: fix language identifier parsing
* Restore table escape characters