Conflict with latest version of pickadate

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Hi.
I was/am using this directive, and upgraded the version of Pickadate library as it claims to fix some iOS8 issues. However on switching to the latest version, there are issues when selecting a date - it highlights/selects the wrongs dates. In particular this works with pass dates.

I've attached a version using the latest library.
https://www.dropbox.com/s/3i79nfoenvvmnpt/angular-pickadate.js-master-broken.zip?dl=0

Thanks
Tom

edit - this is probably just an issue with the library, rather than the directive. I've raised a bug here: amsul/pickadate.js#556