gin-gonic/gin — pull request #132 by smira (2014-10-06 21:55:34+00:00)
Title: Validate should ignore unexported struct fields.

This is the same as #123, just a bit shorter version :)

Without this change following code would panic on `Validate`: `reflect.Value.Interface: cannot return value obtained from unexported field or method`

```
struct A {
Name string `binding:"required"`
field string
}

...
c.Bind(&A{})
```