modif tweet sender et authentification twitter
Merge branch 'master' of
https://github.com/sogetifrance/TwitterManager.git

Conflicts:
	twitter-manager/src/main/java/org/sogeti/ManageConfigurationServlet.java
	twitter-manager/src/main/java/org/sogeti/service/MajManager.java
	twitter-manager/src/main/java/org/sogeti/service/TwitterService.java
	twitter-manager/src/main/webapp/WEB-INF/jsp/manageConfiguration.jsp