LoggingFilter always truncates if message size is larger than 4096

Related code in LoggingFilter.java:

```
private InputStream logInboundEntity(final StringBuilder b, InputStream stream, final Charset charset) throws IOException {
if (!stream.markSupported())

{ stream = new BufferedInputStream(stream); }

stream.mark(maxEntitySize + 1);
final byte[] entity = new byte[maxEntitySize + 1];
final int entitySize = stream.read(entity);
b.append(new String(entity, 0, Math.min(entitySize, maxEntitySize), charset));
if (entitySize > maxEntitySize)

{ b.append("...more..."); }

b.append('\n');
stream.reset();
return stream;
}
```
The stream.read(entity) reads maximum of 8192 bytes in one go (entitySize will be maximum 4096) even if the entity array size is much more larger, therefore the logging output is truncated.