Sec. 1-4. Catchlines, history notes and references.
   (a)   The catchlines of the several sections of this Code are intended as mere catchwords to indicate the contents of the section and shall not be deemed or taken to be titles of such sections nor as any part thereof, nor, unless expressly so provided, shall they be so deemed when any of such sections, including the catchlines, are amended or reenacted.
   (b)   The history notes following sections of the Code and the references scattered throughout the Code are for the benefit of the user only and are not a part of this code.