Update disposition mapper #3118

First pass at decoupling event and contact when
determining disposition. This commit Fixes #3118
where the contact disposition shows the wrong text
when the event disposition category differs from the
disposition category used when setting the contact
disposition.
Update expected text

Changes to Disposition Mapper changed the
disposition text in this spec.
Merge pull request #19 from NUBIC/bug_3118

Bug 3118 - this change needs to be in the version to be deployed this afternoon for testing on the training server.