code: public AsciiTable setPaddingBottom(int paddingBottom) {
  		for(AT_Row row : this.rows){
  			if(row.getType()==TableRowType.CONTENT){
  				row.setPaddingBottom(paddingBottom);
  			}
  		}
  		return this;
  	}
docs: Sets the bottom padding for all cells in the table.
  @param paddingBottom new padding, ignored if smaller than 0
  @return this to allow chaining