Drop Python 3.4 support

.travis.yml

@@ -2,7 +2,6 @@ language: python
 cache: pip
 matrix:
   include:
-    - python: "3.4"
     - python: "3.5"
     - python: "3.6"
     - python: "3.7"

setup.py

@@ -46,10 +46,10 @@ setup(
         "Intended Audience :: Developers",
         "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.3",
-        "Programming Language :: Python :: 3.4",
         "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
         "Topic :: Documentation",
     ],
     keywords='howdoi help console command line answer',