dirPagination Feature Request: boundary-link-numbers=false

Hi!

**Description of issue**:
We would like to be able to set the ui-bootstrap `boundary-link-numbers` property to be false. We also want to enable the ui-bootstrap `rotate` property. I have found where rotate/ellipses is being set in the code, and can think I can put together a workaround (and maybe an eventual PR to have it be an option) for that.

But where is `boundary-link-numbers` being set true? I have not been able to find that.

We are using v0.9.4 of angularUtils-pagination, and v0.14.3 of ui-bootstrap

I'm pretty sure the most recent version of angularUtils doesn't address this issue but if I'm wrong please let me know.

So far angularUtils has been straightforward and met all our needs.
Thank you!

Start by inspecting the pagination directive code that configures the ui-bootstrap boundary-link-numbers and rotate behavior. Compare the current option handling with the requested settings; done means callers can disable boundary-link-numbers while enabling rotate without a workaround.

Written by the indexing model from the issue text.