Feature #4000 : Using silverpeas-datechecker.js plugin to verify dates/hours filled by user into edition screen of publication header.
Feature #3687 : updating slide show system for Gallery application
- adding full compliance with API token from REST Web-Services
- refactoring some code
- removing some warnings
Merge branch 'master' into feature-4000
Feature #4000 : upgrading the new Javascript plugin which centralizes the verification of Dates filled by users.
- adding method helpers
integrating feature #4000
removing useless space
Merge branch 'feature-3687' of https://github.com/SilverYoCha/Silverpeas-Components into ych-feature3687