merge with pyqt5 branch and video sending

.travis.yml

@@ -1,14 +1,14 @@
 language: python
 python:
-  - "3.4"
+  - "3.5"
+  - "3.6"
 before_install:
   - sudo apt-get update
   - sudo apt-get install -y checkinstall build-essential
   - sudo apt-get install portaudio19-dev
   - sudo apt-get install libconfig-dev libvpx-dev check -qq
+  - sudo apt-get install -y python3-pyqt5
 install:
-  - pip install PySide --no-index --find-links https://parkin.github.io/python-wheelhouse/;
-  - python ~/virtualenv/python${TRAVIS_PYTHON_VERSION}/bin/pyside_postinstall.py -install
   - pip install pyaudio
 before_script:
 # OPUS