RichTextBoxTarget: overloads for ReInitializeAllTextboxes and GetTargetByControl + better error handling for empty or unexpected NLog configs (#72)
RichTextBoxTarget: overloads for ReInitializeAllTextboxes and GetTargetByControl + better error handling for empty or unexpected NLog configs (#72)

* Better error handling of ReInitializeAllTextboxes

* Better handling of GetTargetByControl

* refactor

* refactor
NLog/NLog.Windows.Forms