Update version number

CHANGELOG.md

 # Unreleased
 # Added
+# Changed 
+
+# 0.5
+# Added
 - module to annotate document with 'kw_ignored' annotation (applied to 
 phrases/tokens based on defined regexes) and filter list of tokens
 to link to basing on this annotation.

setup.py

@@ -15,7 +15,7 @@ setuptools.setup(
     author='Grzegorz Kostkowski',
     description='''Tool for assigning URLs from semantic graph of
 		           connected sources to concepts in given document.''',
-    version='0.4',
+    version='0.5',
     license='',
     install_requires=requirements,
     packages=[