Test Fix #JAWR-290

Hi paranoiabla

This is a pull request to test the fix of the issue #JAWR-290

You can check with a test using the URL http://localhost:8080/test-jawr/
that the generated image path will be : 
```
<img src="cb3447996755/resources/img/cog.png" />
```
or

```
<img src="/cb3447996755/resources/img/cog.png" />
```

depending on the value set in MVCConfig.java

    props.setProperty("jawr.url.contextpath.override", "");
    props.setProperty("jawr.url.contextpath.ssl.override", "");

or        

    props.setProperty("jawr.url.contextpath.override", "/");
    props.setProperty("jawr.url.contextpath.ssl.override", "/");

Cheers,
icefox