Use angular-bootstrap date-picker over HTML5 Varient

[shsu]

HTML5 date picker doesn't appear consistent across all browsers, using the angular-bootstrap alternative seemed better.

Ref: http://angular-ui.github.io/bootstrap/

[gpfunk]

Most likely going to scrap this because of time, tried to implement it the other day and it took longer than I was hoping

[shsu]

Put it under construction.