Drop Python v3.4 CI testing - accomodates PyYAML v5.3 (#193)

.travis.yml

@@ -11,8 +11,6 @@ matrix:
   include:
     - python: "2.7"
       env: TOXENV=py27
-    - python: "3.4"
-      env: TOXENV=py34
     - python: "3.5"
       env: TOXENV=py35
     - python: "3.6"

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py34,py35,py36,py37,py38,pypy,pypy3,coverage-report
+envlist = py27,py35,py36,py37,py38,pypy,pypy3,coverage-report
 
 
 [testenv]
@@ -25,16 +25,6 @@ commands =
     coverage run --parallel -m pytest {posargs}
     flake8 . --count --show-source --statistics
 
-[testenv:py34]
-deps=
-   dbus-python
-   -r{toxinidir}/requirements.txt
-   -r{toxinidir}/dev-requirements.txt
-commands =
-    python setup.py compile_catalog
-    coverage run --parallel -m pytest {posargs}
-    flake8 . --count --show-source --statistics
-
 [testenv:py35]
 deps=
    dbus-python