Updates PRAW deps to V4

requirements.txt

@@ -1,6 +1,6 @@
 arrow==0.9.0
 decorator==4.0.10
-praw<4
+praw>=4.0
 PyYAML==3.12
 requests==2.12.1
 six==1.10.0

setup.py

@@ -4,7 +4,7 @@ from setuptools import setup
 from codecs import open
 from os import path
 
-VERSION = "5.0.2"
+VERSION = "6.0.0"
 DESCRIPTION = " Remove your comment history on Reddit as deleting an account does not do so."
 
 here = path.abspath(path.dirname(__file__))
@@ -24,7 +24,7 @@ setup(
                  "Intended Audience :: End Users/Desktop",
                  "Programming Language :: Python"],
     packages=["shreddit"],
-    install_requires=["arrow", "backports-abc", "praw<4", "PyYAML", "requests", "six", "tornado"],
+    install_requires=["arrow", "backports-abc", "praw>=4", "PyYAML", "requests", "six", "tornado"],
     package_data={"shreddit": ["shreddit.yml.example"]},
     entry_points={
         "console_scripts": [