prepare 0.5.3

Author: Buck Ryan

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changes
 
+2018-04-21 (version 0.5.3)
+
+* New theme! (gruvbox)
+  ([@monicaycli](https://github.com/b-ryan/powerline-shell/pull/388))
+
 2018-04-21 (version 0.5.2)
 
 * Fix hostname colorize bug

setup.py

@@ -3,13 +3,20 @@
 
 setup(
     name="powerline-shell",
-    version="0.5.2",
+    version="0.5.3",
     description="A pretty prompt for your shell",
     author="Buck Ryan",
     author_email="buck@buckryan.com",
     license="MIT",
     url="https://github.com/banga/powerline-shell",
-    classifiers=[],
+    classifiers=[
+        "Programming Language :: Python :: 2",
+        "Programming Language :: Python :: 2.7",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.3",
+        "Programming Language :: Python :: 3.4",
+        "Programming Language :: Python :: 3.5",
+    ],
     packages=[
         "powerline_shell",
         "powerline_shell.segments",