Delete jcalendar-1.4.jar

Deleted J cal testing integration issue
Merge pull request #27 from Infinity-3A3/Raed

Cyrine fixed Pr
Merge pull request #28 from Infinity-3A3/Raed

Fixed Youssef Pr (Ajout/Liste) Prod
Merge pull request #29 from Infinity-3A3/master

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