By Kirk Miller Note: It’s World Paloma Day on May 22. Why mess with a great thing? The paloma is a near-perfect cocktail for summer. It’s delicious and ridiculously easy to make — at its simplest, it’s basically tequila and grapefruit soda (preferably Squirt). Maybe a lime. If you’re fancy, a salt rim. That’s it. While the history of the drink is rather nebulous, there’s no suggestion that the drink was ever anything more than a two-ingredient crowd-pleaser. Taste Cocktails suggests the drink was named after La Paloma (“The Dove”), the popular folk song composed in the early 1860s, and that dr…