OT-1294 Fix tests so they run under new version of minitest.
OT-1294 Add a guardfile.  Fix more tests.
OT-1294 Install guard-minitest.  Fix more tests.
OT-1294 More test fixing.
OT-1294 Make test suite actually complete a run with many errors.
OT-1294 Fix shipwire unit test syntax errors.
OT-1294 Use the same test env as upstream.
OT-1294 Fix shipwire tests.
OT-1294 Finish fixing all existing unit tests.
OT-1294 Update AIT remote tests.
OT-1294 Fix remote endicia tests.
OT-1294 Fix typo and handle 0-result case for closing Fedex ground shipments.
OT-1294 Fix remaining fedex remote tests.
OT-1294 Skip shipsurance tests for now b/c the test server isn't working.
OT-1294 Run only the remote tests we care about.
OT-1294 get rid of double test def.
OT-1294 get rid of guardfile for now.
OT-1294 test_helper already raises an exception on missing creds.
Merge pull request #13 from optoro/fixing_tests

OT-1294 Fixing shipping tests