Add difflib-based python implementation for #buffer#Overwrite
Add caveat about python in maktaba being a last resort
Merge branch 'master' into difflib
Bump version to 1.5.0 for maktaba#python#ImportModule
Merge pull request #59 from google/difflib

Add maktaba#python#ImportModule and difflib-based python implementation for maktaba#buffer#Overwrite