Remove semver audit dependency, publish publicly

[robbecker-wf]

Problem

semver_audit is a workiva internal package and can't be installed externally and there's no travis.yml.

Solution

• Remove it from pubspec.yaml.
• Add a .travis.yml
• update the publish_to to be correct.

[aviary2-wf]

Raven

Number of Findings: 0

[codecov-wf]

Current coverage is 89.45% (diff: 100%)

Merging #27 into master will not change coverage

@@             master        #27   diff @@
==========================================
  Files             4          4          
  Lines           294        294          
  Methods           0          0          
  Messages          0          0          
  Branches          0          0          
==========================================
  Hits            263        263          
  Misses           31         31          
  Partials          0          0          

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[patkujawa-wf]

+1 CR

[patkujawa-wf]

+10 as well, CI passed

[patkujawa-wf]

Quality Review Approval: +1

• Testing instruction
• Dev +1's
• Dev/QA +10 with detail of what was tested
• All unit tests pass
• Unit test created/updated
• Rosie has run and reports properly the release the ticket will be included in

@Workiva/release-management-p for merge into master