feature 5 not working
still not working
Users are now added to mongo's db (not hashed yet)
users list displayed
deleted useless class searchUserCriteria
Implemented insertion of new users into the database

the login is still not linked to the database so new users are nonexistent for now
Merge remote-tracking branch 'origin/feature12' into feature5bis

Conflicts:
	src/main/java/org/springframework/samples/travel/application/UserService.java
	src/main/java/org/springframework/samples/travel/interfaces/web/controller/UserController.java
	src/main/resources/META-INF/spring/servlet/controllers.xml
Delete unecessary log
Merge pull request #11 from callicles/feature5bis

creation d'user