Make the on cancel event work correctly

Update custom_context.py

Fixed print to print() for Python 3

Fixing a minor issue where GetSubBitmap errors out

Update README.md

Updated recipes with more fixes

Updated examples with possible Mac fix

Removed duplicate recipes and added the correct one

Updated the thread recipes to daemonize the rest of them

Fixed the ordering of the code examples

updated one example to be daemonized

Updated to use sys.executable

Fixed some typos in the comments

Fixed up other print statements to use print functions

Updated code to subclass explicitly