These stocks have increased their payouts for decades.Dividend growth stocks can make for ideal investment options whether you're a retiree or a long-term investor. The types of businesses that increase their payouts on a regular basis normally have a lot of consistency in their earnings from one year to the next, making them safe investments. That doesn't mean that all dividend growth stocks are safe options, but many of them are.Three of the safer ones you can put in your portfolio today are Abbott Labora ...