Make annotation-based scopes match the documentation

# Pros

* Match the behaviour documented here: http://code.google.com/p/rayphp/wiki/Scopes

```php
/**
 * @Scope("Singleton")
 */
class Some_Model {
 ///
}
```

* Old behaviour required lower-case @Scope("singleton") which doesn't conform to the other 

* This causes the behaviour to match Google Guice.

# Cons

Incompatible with annotation code that uses lowercase. (Must be found and replaced in your project)

```regex
s/\@Scope\(['"]singleton['"]\)/\@Scope\("Singleton"\)

```