Frontend date time API 8.2 parser and duration formatter

Existing date time APIs since 8.0:

• web-resource: com.atlassian.confluence.plugins.confluence-frontend:date-time

  <dependency>
      com.atlassian.confluence.plugins.confluence-frontend:date-time
  </dependency>
  

• AMD module: confluence/date-time
• methods:
  • formatPlainDate
  • formatDate
  • formatTime
  • timeAgo

extend the date time since 8.1:

• new methods
  • getDatePattern
  • validate
  • formatNumericDate
• improved
  • formatDate
    • CLDR 39 complaint

extend the date time since 8.2:

• new methods
  • {{parse}}
  • formatDateTime
  • {{formatDuration}}