Flexibility In-Built

#Flexibility In-Built
- Support for jQuery 1.9+
- Support for all mouse events. [mouseup, mouseenter, mouseover, mouseleave, etc..](hover is supported below jQuery 1.9)
- Fill empty cells with dates of previous months. An optional case. Turn this feature off by setting `fillEmpty : false`.
- Shorter code for Multiple Events by @olyckne 
- isValideDate removed for not being used.
- `fc-future` class added to future dates. And `fc-emptydate` to empty cell dates.
- Faster processing and less size.