[ADD] calendar week option

[csnauwaert]

ability to show/hide week number on the left of the date widget.

Inspired from eternicode bootstrap datepicker: https://github.com/eternicode/bootstrap-datepicker/tree/release

preview:

[nikoskalogridis]

please change your PR with the following and resubmit:

• Fix header on top of weekday names to appear correctly
• Change the default value to false so that it does not affect existing usage of the component

[Eonasdan]

calendarWeeks also needs to go into the fn.defaults and the dataToOptions function.

This will finally add the feature request from #130

oops missed it

[nikoskalogridis]

It's already added on $.fn.defaults it only needs to be added to dataToOptions function. Also if I might suggest a # on the column header for the weeks. Also to have a @gray-light css color styling to be placed on the .cw

[nikoskalogridis]

implemented on version 4 beta branch as well

[csnauwaert]

Thanks for your comments, I made the change in the PR.

[nikoskalogridis]

You also need to update the colspan in contTemplate to the following:
<td colspan="' + (options.calendarWeeks ? '8' : '7') + '">
Other than that I think its ok :)

[csnauwaert]

Done :)

[nikoskalogridis]

good job! thanks for your efforts

[webdevilopers]

👍

Is this implemented in the current version already?

Should the docs be updated?
http://eonasdan.github.io/bootstrap-datetimepicker/

[Eonasdan]

@webdevilopers I don't think this is in the master branch. Looks like it's still in the Dev branch.

[webdevilopers]

Thanks @Eonasdan . Has the milestone been scheduled?
I would like to add the new version / option to the https://github.com/sonata-project/SonataCoreBundle .