Drop support for Python <3.5 (#7)

Drop support for Python <3.5
Change setup to require parso>=0.1.1
Remove __future__ import for print_function

Author: OriolAbril

.travis.yml

@@ -1,12 +1,10 @@
 language: python
 sudo: false
 python:
-  - 2.6
-  - 2.7
-  - 3.3
-  - 3.4
   - 3.5
   - 3.6
+  - 3.7
+  - 3.8
   - pypy
 
 matrix:

pydocstring/cli.py

@@ -28,7 +28,6 @@
     --version             show program's version number and exit
 
 """
-from __future__ import print_function #pragma: no cover
 import sys #pragma: no cover
 import os #pragma: no cover
 import argparse #pragma: no cover

setup.py

@@ -20,12 +20,10 @@
     'Environment :: Win32 (MS Windows)',
     'Intended Audience :: Developers',
     'License :: OSI Approved :: MIT License',
-    'Programming Language :: Python :: 2.7',
-    'Programming Language :: Python :: 3.2',
-    '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 :: Software Development :: Documentation',
 ]
 
@@ -49,6 +47,6 @@
         ],
     },
     install_requires=[
-        'parso==0.1.1'
+        'parso>=0.1.1'
     ]
 )