title: XCode 4, Adding localization
body: <p>I have just moved to xcode4 and boy am i confused! :)</p>
  
  <p>For one, in the screenshot, you could see the localizable strings, a couple of the file names changed to "null", i am wondering why and if it would effect the final product?</p>
  
  <p>And also, i could'nt figure out for the life of me, how do i add another localization. Previously in xcode3.x i had to right click on "Localizable Strings" and add a language, where do i do it now?
  <img src="https://i.stack.imgur.com/mypYs.jpg" alt="enter image description here"></p>
  
  <p>Update: I have found where to add locations, but again, previously i was able to type a language the way i wanted, for instance, i want to add spanish, i could do that by just adding a language with name spanish, but now i am forced to choose from a predefined list of languages. And also, the ((null)) bugs me</p>