Issue161 add exception conversion

**Work**

Done:
- Add exception conversion in `ConverterService`
- Add content negotiation in `StatusFilter`
- Replace @Status `value` type from `String` to `int`
- Remove code in `ServerResource`

Not done:
- Retrieve response entity in `ClientResource` after an error occurs in the `ServerResource`

**Use cases explained**

- **Simple request returning no entity (no content)**

> Not changed

```
curl -x PUT -H 'Accept: text/html’ ‘http://server.com/api/test'
```

Response headers:

```
HTTP/1.1 204 No Content
```

Response: N/A

- **Exception not annotated with @Status and with Content-Type "text/html"**

> Not changed

```
curl -x PUT -H 'Accept: text/html’ ‘http://server.com/api/exception'
```

Response headers:

```
HTTP/1.1 500 Internal Server Error
Content-type: text/html; charset=UTF-8
Content-length: 486
```

Response:

```html
<html>
<head>
   <title>Status page</title>
</head>
<body style="font-family: sans-serif;">
<p style="font-size: 1.2em;font-weight: bold;margin: 1em 0px;">Internal Server Error</p>
<p>The server encountered an unexpected condition which prevented it from fulfilling the request</p>
<p>You can get technical details <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.5.1">here</a>.<br>
Please continue your visit at our <a href="/">home page</a>.
</p>
</body>
</html>
```

- **Exception not annotated with @Status and with Content-Type "application/json" or without Content-Type**

> New: **Content Negotiation**

```
curl -x PUT -H 'Accept: application/json’ ‘http://server.com/api/exception'
```

Response headers:

```
HTTP/1.1 500 Internal Server Error
Content-type: application/json
```

Response:

```json
{
    "code": 500,
    "description": "The server encountered an unexpected condition which prevented it from fulfilling the request",
    "reasonPhrase": "Internal Server Error"
}
```

- **Exception annotated with @Status(400) and with Content-Type "text/html"**

> New: **Status code**

```
curl -x PUT -H 'Accept: text/html’ ‘http://server.com/api/notfound'
```

Response headers:

```
HTTP/1.1 404 Not Found
Content-type: text/html; charset=UTF-8
Content-length: 439
```

Response:

```html
<html>
<head>
   <title>Status page</title>
</head>
<body style="font-family: sans-serif;">
<p style="font-size: 1.2em;font-weight: bold;margin: 1em 0px;">Not Found</p>
<p>The server has not found anything matching the request URI</p>
<p>You can get technical details <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.5">here</a>.<br>
Please continue your visit at our <a href="/">home page</a>.
</p>
</body>
</html>
```

- **Exception annotated with @Status(400) and with Content-Type "application/json" or without Content-Type**

> New: **Status Code** and **Content Negotiation**

```
curl -x PUT -H 'Accept: application/json’ ‘http://server.com/api/notfound'
```

Response headers:

```
HTTP/1.1 404 Not Found
Content-type: application/json
```

Response:

```json
{
     "code":404,
     "reasonPhrase":"Not Found",
     "description":"The server has not found anything matching the request URI"
}
```

- **Exception annotated with @Status(value=400, serializeable=true) and with Content-Type "application/json" or without Content-Type**

> New: **Status Code**, **Exception properties serialization** and **Content Negotiation**

```
curl -x PUT -H 'Accept: application/json’ ‘http://server.com/api/badparameter'
```

Response headers:

```
HTTP/1.1 404 Not Found
Content-type: application/json
```

Response:

```json
{
    "message": "Parameter age is not of the expected type: number. Value: male",
    "name": "age",
    "type": "number",
    "value": "male"
}
```

Exception class:

```java
@Status(value = 400, serializeProperties = true)
public class BadParameterTypeException extends RuntimeException {

    private final String name;
    private final String value;
    private final String expectedType;

    public BadParameterTypeException(String name, String value, String expectedType) {
        super("Parameter " + name + " is not of the expected type: " + expectedType + ". Value: " + value);
        this.name = name;
        this.value = value;
        this.expectedType = expectedType;
    }

    @Override
    public String getMessage() {
        return super.getMessage();
    }

    public String getName() {
        return name;
    }

    public String getValue() {
        return value;
    }

    public String getExpectedType() {
        return expectedType;
    }
}
```
Why are you instantiating a StatusRepresentation?