Fix an issue with Twitter.BootstrapRTL

When using bootstrap-rtl.css (http://www.nuget.org/packages/Twitter.BootstrapRTL/) which replaces left's with right's, the datepicker has two issues:
• dropdown is expanded to page width (as in the pic below), so I appended "col-md-2" class to template
• after fixing width, setting .left property does not change position, so .right property needs to be set
![datepicker](https://cloud.githubusercontent.com/assets/74016/3120935/161dce7a-e757-11e3-8ee9-8f68d29029e3.PNG)