Felix 75ff9e7c03 Update calendar.js
endSeconds >= 0 shows me calendar entries which are 0 seconds long. E. g. entries from '24.01.2009 10:00' to '24.01.2009 10:00'. So I get them still displayed, even though they ended years ago. 

endSeconds > 0 fixed that for me.
2016-01-30 11:51:24 +01:00
..
2016-01-30 11:51:24 +01:00