Merge pull request #12 from oster/master

Synchronisation
Package each exercise of the BaseballGame into its own repertory
Simplify the code of the sorting universe. ( partially fix #60 )
Some of the .py files seems to be non valid python files ( like AlgCocktailSort1Entity.py for instance )
Correct some typos in the Javadoc of SortingButtonPanel.java
enable the control panel for the raw pancake world
Enable the interactive control panel for the burned PancakeWorld.java
Update ChangeLog
Update SortingWorld.html
Fix #72
Correct several indentations ( thanks to the function "Correct indentation" of Eclipse )
Rerun po4a
Merge pull request #74 from g-humbert/master

Resynch