Bottom border still shows for a cell if it is the last row on a page

[sj-1010]

Issue Description:
When using border: [false, false, false, false] for a cell in a table, if the cell belongs to a row that is the last one on that page then the bottom border is still rendered.

Playground Example:

var dd = {
	content: [
	    { text: ' ', fontSize: 360 }, // just to add some space at the top of the page
		{
			table: {
			    widths: ['*','*','*','*'],
			    heights: 50,
				body: [
					['ABC', 'DEF', 'GHI', 'JKL'],
					['ABC', {text: 'XYZ', colSpan: 2}, '' , {text: '', border: [false, false, false, false]}],
					['ABC', 'DEF', 'GHI', 'JKL'],
					['ABC', {text: 'XYZ', colSpan: 2}, '' , {text: '', border: [false, false, false, false]}],
					['ABC', 'DEF', 'GHI', 'JKL'],
					['ABC', {text: 'XYZ', colSpan: 2}, '' , {text: '', border: [false, false, false, false]}],
					['ABC', 'DEF', 'GHI', 'JKL'],
					['ABC', {text: 'XYZ', colSpan: 2}, '' , {text: '', border: [false, false, false, false]}],
				]
			}
		},
	]
	
}

Screenshot: