ajout apercu site page accueil
Merge pull request #38 from pcrouillere/cuchepau/apercu_site

ajout apercu site page accueil
adding add tag to a url (only one)
Merge pull request #39 from pcrouillere/pcrouillere/youcanaddtagtoaurl

adding add tag to a url (only one)
Merge branch 'master' of https://github.com/pcrouillere/Jumper into advancedsearch

Conflicts:
	src/dao/Url.java
advanced search, interface improved