Resolve #7

[ruebot]

• Update TravisCI to add docs build
• Address javadocs build failures
• Add gh-pages plugin
• Additional updates to pom.xml in preparation for first release

@ianmilligan1 if TravisCI passes, we should be good to merge here.

[codecov]

Codecov Report

Merging #24 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #24   +/-   ##
=======================================
  Coverage   43.41%   43.41%           
=======================================
  Files          42       42           
  Lines         850      850           
  Branches      148      148           
=======================================
  Hits          369      369           
  Misses        437      437           
  Partials       44       44

Impacted Files	Coverage Δ
...ivesunleashed/io/GenericArchiveRecordWritable.java	68.08% <ø> (ø)	⬆️

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