Version bump to 0.6.9

Author: Niharika Ray

knowledge_repo/_version.py

@@ -4,7 +4,7 @@
 
 __author__ = "Nikki Ray (maintainer), Robert Chang, Dan Frank,  Chetan Sharma,  Matthew Wardrop"
 __author_email__ = "[email protected], [email protected], [email protected], [email protected], [email protected]"
-__version__ = "0.6.8"
+__version__ = "0.6.9"
 try:
     with open(os.devnull, 'w') as devnull:
         __version__ += '_' + subprocess.check_output(['git', 'rev-parse', 'HEAD'], shell=False, stderr=devnull).decode('utf-8').replace('\n', '')