Changed 'anonymous' functions to named functions

changed it so that now instead of testJade.jade resulting in: 

```
// testJade.jade compiled template
exports["testJade"] = function anonymous(locals) {

};
```

it should now use 'template_name' format for the function:
```
// testJade.jade compiled template
exports["testJade"] = function template_testJade(locals) {
   ...
};
```