Prepare for 0.3.4

Author: fabaff

CHANGES.rst

@@ -1,7 +1,7 @@
 Changes
 =======
 
-20181021 - 0.3.3
+20181021 - 0.3.4
 ----------------
 
 - Refactor sensor check

setup.py

@@ -23,7 +23,7 @@
 
 setup(
     name='luftdaten',
-    version='0.3.3',
+    version='0.3.4',
     description='Python API for interacting with luftdaten.info.',
     long_description=long_description,
     url='https://github.com/fabaff/python-luftdaten',