5d8e085369
As mentioned in #25893 the copy trait is not very well explained for beginners. There is no clear mention that all primitive types implement the copy trait and there are not a lot of examples. With this change I try to make it more visible and understandable for new users. I myself have struggled with this, see [my question on stackoverflow](http://stackoverflow.com/questions/30540419/why-are-booleans-copyable-even-though-the-documentation-doesnt-indicate-that). And I want to make it more transparent for others. I filed issue #25893 but I thought that I could give it a shot myself to relieve some of the work from the devs :) If it is not well written or there are some changes to be made before it can be merged, let me know. Cheers, Mathieu