Removed Python 2 support

Author: Bernardo-MG

.travis.yml

@@ -4,7 +4,6 @@
 # Using Python for the project
 language: python
 python:
-  - "2.7"
   - "3.4"
   - "3.5"
   # Python 3.6 is set to test and deploy the docs in the configuration matrix

README.rst

@@ -50,7 +50,6 @@ Prerequisites
 
 The project has been tested in the following versions of the interpreter:
 
-- Python 2.7
 - Python 3.4
 - Python 3.5
 - Python 3.6

dice_notation/dice.py

@@ -20,9 +20,6 @@
 __author__ = 'Benardo Martínez Garrido'
 __license__ = 'MIT'
 
-if sys.version_info[0] >= 3:
-    xrange = range
-
 
 class Rollable(object, metaclass=ABCMeta):
     """
@@ -131,7 +128,7 @@ def roll(self):
         elif self.quantity is None or self.sides is None:
             result = None
         elif self.quantity > 0 and self.sides > 0:
-            for x in xrange(self.quantity):
+            for x in range(self.quantity):
                 result += randint(1, self.sides)
         else:
             result = None

setup.py

@@ -74,8 +74,6 @@ def run_tests(self):
         'Intended Audience :: Developers',
         'License :: OSI Approved :: MIT License',
         'Programming Language :: Python',
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',