Updated StringTrim

As (partially) requested by devDiggy/Digpoe, just not completely as he wanted.
It keeps its old function, but now also puts spaces afer newlines.
(number of spaces based on nString, thuss making the message appear after ':' on the previous line)
That way, people can't fake messages by using newlines:
```
> "Hello world!\nTelamon: I'm here, people!"
einsteinK: Hello world!
Telamon: I'm here, people!
```
Now that would result into this message with a in it:
```
einsteinK: Hello world!
           Telamon: I'm here, people!
```