natmove – Move punctuation following a citation

The pack­age has only one pur­pose: to move su­per­scripted ci­ta­tions be­yond punc­tu­a­tion; some con­ven­tions for pro­duc­ing text pre­fer this lay­out.
Some of the code in the pack­age is de­rived from the cite pack­age.
The pack­age is dis­tributed as part of the achemso bun­dle.