require 'guard' in jasmine/cli

Hi,

Jasmine CLI targets fail with the following:
```shell
.bundle/gems/guard-jasmine-2.0.1/lib/guard/jasmine/cli.rb:242:in `version': uninitialized constant Guard::UI (NameError)
```
In 1.x versions we had a `require guard/ui`, however it doesn't work on its own now.