Fix modUser::getSettings() error

when modUser::getUserGroupSettings() returns data (expected array of modUserGroupSetting objects but is actually returning array of associative key -> value settings)
Introduce dependency support from xPDO 2.3.0-alpha

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

* xpdo/develop:
  Add changelog entry
  Add dependency metadata/methods to xPDOTransport
  Bump version for 2.3.0-alpha development
  Disable phpdoc generation in build for now
  Update code docs, fix invalid constant
Implement package dependency support
Fix update-remote processor