Add-ons Change Content Owner or Date 2.0.18

• Change: Require Standard Library to make the add-on work on older version of XF (#102)
• Change: Increase PHP version requirement to 7.1 to match that of Standard Library add-on (#102)
• Change: Increase XF version requirement to 2.2 to match that of Standard Library add-on (#102)
• Fix: Template modification for thread_edit template fails to apply on XF 2.3 (#103)
• Fix: Time input width still not wide enough to show AM/PM (#104)

• Fix: Error rendering template: variable @_input-dateInputWidth is undefined (#100)

• Change: Change permission names to be consistent with that of XenForo itself (#94)
• Change: When inline editing post, form row is not using full width (#96)
• Change: Switch to native HTML controls on both XF 2.2 and 2.3 (#97)
• Fix: [E_DEPRECATED] Use of "parent" in callables is deprecated (#95)