Fixes #44
When `self._sel` is an empty array, `self.blackout()` always returns false. 

Fixed ChiperSoft/Kalendae#69
Merge pull request #71 from aratak/sel-blackout-condition

When `self._sel` is an empty array, `self.blackout()` always returns false
replace columnHeaderLength option with columntHeaderFormat
Re-implement isArray util method.

Actually I've stolen isArray from underscore.js library
setSelected through event 'change'

As addSelected and removeSelected through 'change' event
Merge pull request #72 from aratak/sun-mon-tue

Improve possibilities for the day of week formatting
Merge remote-tracking branch 'tagliala/arrows-directions-fix'

Conflicts:
	build/kalendae.min.js
Merge pull request #75 from aratak/getSelected-should-through-event-change

setSelected through event 'change'
Merge remote-tracking branch 'origin/master'
Deleting the exports.js file, as it has not and never will be used
Cleaning up indentation, removing trailing whitespace and fixing some missing semi-colons
Pass date to the 'change' event.
Add action to the parameter list
Change documentation according to 'change' event parameters.
Merge pull request #73 from aratak/the-true-is-array

Why the function 'isArray' for an empty array returns false?​
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/util.js
Updated to moment 2.0
Updated built and minified
Make process now generates two versions of Kalendae: one with moment built in, and one that expects it on the page.