Account for new Job states in Matrix#matrix_state

New Job states (:created, :queued, :started) remain to be accounted
for in matrix_state.

This led to a few exceptions being thrown.
Update bundler manually

This should get around the 'bundle install' problem.
Merge pull request #321 from travis-ci/ha-bug-fix_matrix_state

Account for new Job states in Matrix#matrix_state