Minor comments for creating a new competition

[SAuroux]

• the checkboxes for both languages German and English should better be selected by default (also, they are unselected once a submit was not successful)
• the entrance fee text boxes are required to be filled when creating a competition. However, the person creating a competition usually is not aware of those. I suggest a default value of 0 to fix this.
• when a new competition day is added, the default date shows January 1st 2010. If not too much work, the subsequent days of the previously set day would be a way better default.