Element clash on resourceDay view

[rdoursenaud]

If an element spans multiple days and maxTime is not set (or set to default value 24), the elements miss the "top:" css property and are displayed stacked on top of the hours.

Here is a demonstration of the problem :
http://jsfiddle.net/rdoursenaud/qefB2/embedded/result

[sparh]

Hey,
I also noticed that if an element duration is less than the slotMinutes option, the element fails to position correctly.
Here is an example with slotMinutes set to 60 : http://jsfiddle.net/qefB2/7/
And here is another one with slotMinutes not set (default is 30) : http://jsfiddle.net/qefB2/8/