Base price list admin menu builds itself now

TODO: price entries, saving of the price list and layout
layout done
save working
refilling from database working
added priclelist to panes and worked on part of the image upload
Weekmenu admin menu working except for image uploading
bugfix with saving and retrieving
dutch translation
french translation
image upload working

-- cropping needed
added saturday and sunday
fixed a bug in image aspect ratio and resizing and reduced the image size for the menu turtles
removed i18n from weekdays
split week menu in week menu and offers