Schema option callback="(class::)method" added to xPDOObject::set()
Corrected an English phrase
Remove deprecated xPDO::getMicroTime() method

Use microtime(true), available since PHP 5.0.0
Allow schema to define callbacks for field

This is automatically applied when the set() method is called on the field the callback is defined for

Merge remote-tracking branch 'origin/pr/12' into develop

* origin/pr/12:
  Schema option callback="(class::)method" added to xPDOObject::set()
Merge remote-tracking branch 'xpdo/develop' into develop

* xpdo/develop:
  Remove deprecated xPDO::getMicroTime() method
  Schema option callback="(class::)method" added to xPDOObject::set()
Remove references to deprecated modX::getMicroTime()

Closes #11582

Merge remote-tracking branch 'xpdo/develop' into develop

* xpdo/develop:
  Remove deprecated xPDO::getMicroTime() method
  Schema option callback="(class::)method" added to xPDOObject::set()
Corrected an English phrase

* origin/pr/11592:
  Corrected an English phrase
Fix a few wrong path to processors
Fix a few wrong path to processors

* origin/pr/11602:
  Fix a few wrong path to processors
Fix notice introduce in previous commit

Plus simplified the logic around "generated" primary key fields — no longer depends on index="pk" being set on the schema
Merge remote-tracking branch 'xpdo/develop' into develop

* xpdo/develop:
  Fix notice introduce in previous commit
Merge remote-tracking branch 'xpdo/develop' into develop

* xpdo/develop:
  Fix notice introduce in previous commit