closes #75: drag-and-drag on points, bounded-areas, line-segments map to translations
clean up
consider the singular, polygonal, and line-segment cases
method to store Commands without immediately executing
extend the recording operationDecorator for store method
consider the singular, polygonal, and line-segment cases
clean up
Merge branch 'development' into staging
Merge branch 'staging' of github.com:jahan-addison/gridpaste into staging