Test files using jasmine were extremely ugly with lots of errors,

because all of the jasmine methods were just loaded as globals. This

change adds the relevant rollup configuration so that we can import

those methods and properly have them get mapped to the items on

window.
This also fixes the package dependency to be jasmine-core, which is

the correct name on npm. The jasmine npm package is a CLI tool for

running tests, rather than the library.

Used this in conjunction with changes that did

import { ... } from 'jasmine' and saw that all unit tests ran

correctly.