Small fixes in code style (bracket-nazi, == --> ===, != --> !==) for w2s...

Hello, Vitaly!
I change == and != to === and !==. Also, i add brackets in "if ... else" statements. Code alignment maked with NetBeans 7.4. Initialization changed from
```javascript
...
this.onClose = null;
this.onSave = null;
...
```
to
```javascript
var defaultSettings = {
    onClose : null;
    onSave: null,
    ...
}
$.extend(this, defaultSettings);
```
Will there be problems with the "===" and "! =="? I have no information about it.