Delete module-calendars.WesternCalendar.html

enhance management of option hour12

Detect eras for chinese and dangi calendars

Enhance julian-gregorian eras

Enhance julian-gregorian eras

Update description and comments

follow numbering system from locale, even forparts in field mode

Update static objects

Static objects are methods only.
The aggregate.js is deleted and no more mentioned.

Enhance era display

When no era should be displayed, the literal before era is also deleted, except If era part was first part: the literal after era is then deleted.
If eraDisplay is set to "always" whereas the custom calendar has no era (eras == null), no era part is generated.

Erase deleted files