Drop Python 3.4 support

.drone.yml

@@ -25,37 +25,6 @@ steps:
     when:
       status: [ changed, failure ]
 
----
-kind: pipeline
-name: test-python3.4
-
-workspace:
-  base: /app
-  path: .
-
-steps:
-  - name: test
-    image: python:3.4
-    environment:
-      TOXENV: py3
-    commands:
-      - python -V
-      - pip install tox
-      - tox
-
-  - name: notify
-    image: drillster/drone-email
-    settings:
-      host:
-        from_secret: SMTP_HOST
-      username:
-        from_secret: SMTP_USER
-      password:
-        from_secret: SMTP_PASS
-      from: drone@iamthefij.com
-    when:
-      status: [ changed, failure ]
-
 ---
 kind: pipeline
 name: test-python3.5

.travis.yml

@@ -1,9 +1,8 @@
+---
 dist: xenial
 language: python
 matrix:
   include:
-    - python: "3.4"
-      env: TOXENV=py3
     - python: "3.5"
       env: TOXENV=py3
     - python: "3.6"

setup.py

@@ -29,7 +29,6 @@ setup(
         'Topic :: System :: Monitoring',
         'License :: OSI Approved :: Apache Software License',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',