chat-linker: update to latest commit

Author: ForNeVeR

cthulhu-3/chat-linker/Dockerfile

@@ -1,5 +1,5 @@
 FROM node:6.9.5
-RUN git clone https://github.com/jt3k/chat-linker.git /usr/app/src && cd /usr/app/src && git checkout 8f54762de724ba9caa963b5ba908f0b29e230681
+RUN git clone https://github.com/jt3k/chat-linker.git /usr/app/src && cd /usr/app/src && git checkout c81aada496328f76a299ad8affafae3bdcb7f1c4
 RUN cd /usr/app/src && npm install # TODO: Not stable enough; migrate to yarn
 COPY app-config.json /usr/app/src/app-config.json
 WORKDIR /usr/app/src