ui-date datepicker does not scroll with modal when kept inside it

[sourabh504]

1. Describe the problem and the steps to reproduce
2. Describe the expected result
3. Please create a jsbin/plunkr/etc and preferably non-anonymous so that it does not expire
4. Which version of ui-date/angular are you using?
5. Describe the debugging that has been performed and where in the code you suspect the issue may be
6. Any other useful information?

[sourabh504]

https://github.com/SourabhRanka/ui-date_inModal.git