Added bower package definition

Hi, first of all, thank you for this component.
The content of this pull request is just the bower package definition; after merging this, you will be able to register the package doing: "bower register moment-datepicker <git-endpoint>" (see here http://bower.io/#registering-packages)
I think that you will also need to create the "1.0.0" tag manually if you decide to merge this in order for bower to work correctly.
Kind regards,
Germán.