ninjinkun/NJKWebViewProgress — pull request #17 by modocache (2014-03-29 10:23:23+00:00)
Title: Publicize web view progress constants.

Currently, a developer that wants to execute code when the DOM in a web
view has become interactive must write the following:

```objc
-(void)webViewProgress:(NJKWebViewProgress *)webViewProgress
updateProgress:(float)progress
{
if (progress == 0.5) { /* ... */ }
}
```

In the above sample, `0.5` is a magic number.

Eliminate the need to use magic numbers by publicizing the constants
used internally: `0.1`, `0.5`, and `0.9`. This allows users to write the
following:

```objc
if (progress == kNJKWebViewProgressBeforeInteractiveMaximum) { /* ... */ }
```