Add 'Improve this Doc' button for GitHub edit
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Shows how to access new created data in the afterSave method

I was looking for this info and found the book a little dry so a ran a simple test. Only proposing changes to the english docs. May want to notify other languages.
Use the 'release' global variable to indicate the git branch
Flip release and version values
[fr] Follow bc3be19a50d5829831cc9adfc3e935a7a5119791

Shows how to access new created data in the afterSave method
[ja] Follow bc3be19a, add afterValidate, code layout change.
Merge pull request #1023 from suzuki/feature/ja-follow-bc3be19a-and-others

[ja] Follow bc3be19a, add afterValidate, code layout change.
Add 'cakebranch' extension to dynamically inject branch name
Restore version number
Move branch definition into all.py
Merge pull request #1016 from bcrowe/feature-docEditButton

Add 'Improve this Doc' button for GitHub edit
Highlight loadAll method