Яakuten Cafeteria Menu

Change log:

[0.9.1]
- Disabled API source data because it returns wrong booths, creating duplicated entries
- Auto select time/cafeteria if previous selection doesn't exist
- Small graphical improvements

[0.9.0]
- Added a calendar button to switch between any day of the current week, displaying its menu
- Recovered the shift+click feature on the sorter button, to choose the previous sorting method
- Scroll of the menu resets to the top when the day, time or cafeteria is changed
- Preload images when a menu is loaded, so they appear instantly when the cafeteria or the time is changed