fixed Dockerfile.kivy-travis crashing issue

.travis-kivy.yml

@@ -12,4 +12,4 @@ addons:
 install:
   - pip3 install -r kivy-requirements.txt
 script:
-  - xvfb-run python3 -m unittest src/bitmessagekivy/tests/test_create_random_address.py
+  - xvfb-run python3 tests-kivy.py

Dockerfile.kivy-travis

@@ -31,9 +31,11 @@ RUN apt-get install -yq --no-install-suggests --no-install-recommends \
     python3-pip \
     # python 3.7
     python3.7 python3.7-dev \
-    # .travis.yml
+    # .travis-kivy.yml
     build-essential libcap-dev tor \
-    language-pack-en
+    language-pack-en \
+    xclip xsel \
+    libzbar-dev
 
 # cleanup
 RUN rm -rf /var/lib/apt/lists/*

python3_requirements.txt

@@ -30,5 +30,3 @@ typed-ast==1.4.0
 urllib3==1.25.6
 wrapt==1.11.2
 zipp==3.1.0
-xclip
-xsel