Story 19

Feature to get measurements and images from server. Added server URL as "http://freelayers.org". Currently does not support larger images.
Somewhere in this class I see code like this:

```java
        } catch (ProtocolException e) {
            e.printStackTrace();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }catch (Exception e){
            return -1;
        }
```

Where is the point in catching every type of exception separately and then doing the same (evil) thing for all of them? A single catch is enough. Also, please see my comment on `e.printStackTrace()` below.