refactor: remove Python 2 support

.travis.yml

@@ -1,7 +1,6 @@
 language: python
 
 python:
-  - "2.7"
   - "3.3"
   - "3.4"
   - "3.5"

README.md

@@ -1,8 +1,9 @@
-# filetype.py [![Build Status](https://travis-ci.org/h2non/filetype.py.svg?branch=master)](https://travis-ci.org/h2non/filetype.py) [![PyPI](https://img.shields.io/pypi/dm/filetype.svg?maxAge=2592000?style=flat-square)](https://pypi.python.org/pypi/filetype) [![PyPI](https://img.shields.io/pypi/v/filetype.svg?maxAge=2592000?style=flat-square)](https://pypi.python.org/pypi/filetype)
+# filetype.py [![Build Status](https://travis-ci.org/h2non/filetype.py.svg?branch=master)](https://travis-ci.org/h2non/filetype.py) [![PyPI](https://img.shields.io/pypi/dm/filetype.svg?maxAge=2592000?style=flat-square)](https://pypi.python.org/pypi/filetype) [![PyPI](https://img.shields.io/pypi/v/filetype.svg?maxAge=2592000?style=flat-square)](https://pypi.python.org/pypi/filetype) [![API](https://img.shields.io/badge/api-docs-green.svg)](https://h2non.github.io/filetype.py)
 
 Small and dependency free [Python](http://python.org) package to infer file type and MIME type checking the [magic numbers](https://en.wikipedia.org/wiki/Magic_number_(programming)#Magic_numbers_in_files) signature of a file or buffer.
 
-This is a Python port from [filetype](https://github.com/h2non/) Go package.
+This is a Python port from [filetype](https://github.com/h2non/) Go package. 
+Works on Python `+3`.
 
 ## Features
 

setup.py

@@ -37,7 +37,6 @@
         'Intended Audience :: Developers',
         'Intended Audience :: System Administrators',
         'License :: OSI Approved :: Apache Software License',
-        'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',