Fix policy manager loading

The policy manager was also failing to load because
it was using webinos-utilities, which was not present
in node_modules for this module.  This fixes that
problem.  It also automatically creates a new, valid
policy file when the policy manager starts, to get rid
of another error.

Jira issue: WP-968
Modify testing approach to fail on more errors

The Travis test framework was not producing errors when some tests failed.
This has now been fixed.  We're also not testing for node 0.10.

Jira issue: WP-945
Put webinos-utilities in dev-dependencies list.

Jira issue: WP-968
Merge pull request #8 from jplyle/fix-travis

Modify testing approach to fail on more errors
Merge pull request #6 from jplyle/copy-default-policy

Fix policy manager loading