Merge pull request #2 from XWikiYann/master

Refactoring of the Application
Merge pull request #3 from XWikiYann/master

HOLIDAYREQ-20: Overview doesn't work when 'numberDays' property is empty in a request

[Misc] Fix 'Version' in pom
[Misc] Fix extra tab
[maven-release-plugin] prepare release xwiki-application-holidayrequest-1.3
[maven-release-plugin] prepare for next development iteration