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Revert "-"

This reverts commit 5f614499eb30f2f82a12a6b846f76c7051f30666.
New feature : opened boxes on load

Just add the « TextShower-open » class to a box element and it will
open when the page is loaded.
(merge) Preparing the 1.0.3 update
1.0.3 Beta update

Code improvements, better performances and added class handler
« TextShower-open », to have a box open on load