removes Python 3.4, 3.5 support [ch1586]

Author: looselycoupled

.travis.yml

@@ -3,8 +3,6 @@ language: python
 dist: xenial
 
 python:
-  - '3.4'
-  - '3.5'
   - '3.6'
   - '3.7'
 

setup.py

@@ -52,8 +52,6 @@
     'Natural Language :: English',
     'Operating System :: OS Independent',
     'Programming Language :: Python',
-    'Programming Language :: Python :: 3.4',
-    'Programming Language :: Python :: 3.5',
     'Programming Language :: Python :: 3.6',
     'Programming Language :: Python :: 3.7',
     'Topic :: Database',
@@ -153,7 +151,7 @@ def get_description_type(path=PKG_DESCRIBE):
         "console_scripts": [],
     },
     "install_requires": list(get_requires()),
-    "python_requires": ">=3.4, <4",
+    "python_requires": ">=3.6, <4",
     "setup_requires":["pytest-runner"],
     "tests_require":["pytest"],
 }