Enh #3225: Add CForm::errorSummaryHeader and CForm::errorSummaryFooter, used like in CActiveForm::errorSummary().
Relocated the line added to CHANGELOG.
Merge PR #3226 branch 'feature/3225-CForm-errorSummary-headerAndFooter' of https://github.com/rawtaz/yii

* 'feature/3225-CForm-errorSummary-headerAndFooter' of https://github.com/rawtaz/yii:
  Relocated the line added to CHANGELOG.
  Enh #3225: Add CForm::errorSummaryHeader and CForm::errorSummaryFooter, used like in CActiveForm::errorSummary().

Conflicts:
	CHANGELOG