(#62) Updated OpenCV version

Author: s1hofmann

Diff for: .travis.yml

@@ -23,7 +23,6 @@ before_install:
   - sudo apt-get -y -o Dpkg::Options::="--force-confnew" install docker-ce
   - docker pull s1hofmann/nut-ci:latest
   - docker run -it -d --name nut-ci --user $(id -u):$(id -g) -v ${PWD}:${PWD}:rw s1hofmann/nut-ci:latest bash
-  - docker exec --user 0 nut-ci chown -R $(id -u):$(id -g) /opt
 
 install: true
 

Diff for: package-lock.json

@@ -55,7 +55,7 @@
   },
   "dependencies": {
     "clipboardy": "^2.0.0",
-    "opencv4nodejs-prebuilt": "4.15.0-b11",
+    "opencv4nodejs-prebuilt": "4.15.0",
     "robotjs-node10": "0.5.2"
   },
   "devDependencies": {