Changes in version 1.13.2                        

    o   Added PAM weights to the SPG nuclease.

                       Changes in version 1.13.1                        

    o   Added the option of not scaling editing weights in BaseEditor
	function.

                        Changes in version 1.9.1                        

    o   Added Csm complex RNA-targeting nuclease.

                        Changes in version 1.7.1                        

    o   Updated weights in the SaCas9 nuclease.

                        Changes in version 1.3.3                        

    o   Added BiocStyle to Suggests.

                        Changes in version 1.3.2                        

    o   Added nuclease MAD.

                        Changes in version 1.0.0                        

    o   New package crisprBase, Base functions and classes for CRISPR
	gRNA design.