Updated SFML headers to latest snapshot.

Signed-off-by: Patrick Dinklage <pdinklag@googlemail.com>
Updated SFML binaries for Windows 64 and 32 bit.

Signed-off-by: Patrick Dinklage <pdinklag@googlemail.com>
Added binding for RenderTexture setRepeated and isRepeated.

Signed-off-by: Patrick Dinklage <pdinklag@googlemail.com>
Unicode window title support.

Introduced the "Intercom" intercom class that will contain decoders and encoders for communication with Java. This will be extended in the future for performance optimizations.

Signed-off-by: Patrick Dinklage <pdinklag@googlemail.com>