[x] remove background, food container and dish tools (jess worked on: CorrectingBugs branch) see bug jsut below
[x] bug with the bug before : the first selected cursor is background even if the label of background is not displayed [Leo on bugClassFirstSecondPicture]
[x] bug with a class in the first picture and not in the second one
[x] database int into double for nutritionals values (kcal, etc...) [Jess]
[x] bug with button validate several menu ...|Michael]
[x] display the coin on camera Screen [Léopold on coinCameraScreen branch]
[x] bug with delete Food button with id in database and objects [Michael]