Update eonasdan-bootstrap-datetimepicker to current version 4.0

[webdevilopers]

As mentioned by @afurculita in issue #115 (comment) version 4.0 of the eonasdan-bootstrap-datetimepicker has been released:

• Goals for next milestone Eonasdan/tempus-dominus#161

This version includes new features like the calendarWeek options:

• Add datepicker calender week option #115

But they also mention some BC:

• https://github.com/Eonasdan/bootstrap-datetimepicker/releases/tag/v4.0.0
• http://eonasdan.github.io/bootstrap-datetimepicker/Version%204%20Changelog/

Can someone tell if these BC are relevant to the SonataCoreBundle ?

If not I could create the PR for the bower.json file:
https://github.com/sonata-project/SonataCoreBundle/blob/master/bower.json#L8

Changing dependencies from "eonasdan-bootstrap-datetimepicker": "3.1.3" to "eonasdan-bootstrap-datetimepicker": "4.0.0".

Not sure if the version by @Bladrak is a better solution linking the latest version:

• https://github.com/sonata-project/SonataCoreBundle/blob/2.2/bower.json

Then I would create a PR on the docs for the new options.

[webdevilopers]

Just a short note to myself for the available options:

• http://eonasdan.github.io/bootstrap-datetimepicker/Options/
• http://sonata-project.org/bundles/core/master/doc/reference/form_types.html#sonata-type-date-picker-and-sonata-type-datetime-picker
• https://github.com/sonata-project/SonataCoreBundle/blob/master/Form/Type/BasePickerType.php#l80-104

[Bladrak]

Not sure about the BC breaks, I guess we'll have to try it out. Feel free to submit a PR with the updated version if you'd like :)

[nlzet]

Did you continue with this? I tried setting up v4 of the datetimepicker, but this won't work out of the box.

And there will be BC breaks, for example in the current way there is a option dp_pick_time to enable/disable the time. In v4 this is defined by checking if there are time units in your date format. ()

Other options have other names or work slightly differently and have different default values like null/false.

How would you like to continue with this ? Should a PR with BC breaks be created ?

[webdevilopers]

At least we need a full list of options that have changed.

[webdevilopers]

Closing this issue in favor of PR #149 by @nlzet.