Activity_create mise a jour

+ ressources fondListe
MàJ rendus xml
Ressource logo
Merge branch 'master' of
https://github.com/alacrampe/PresentationTimerAL.git

Conflicts:
	gen/com/example/presentationtimer/R.java
Merge branch 'master' into playActivity

Conflicts:
	gen/com/example/presentationtimer/R.java
	res/layout/activity_main.xml
Back button.