[zanata/zanata-common] 974d1a: chore(dependency): zanata-api update to 3.8.4

[GitHub]

  Branch: refs/heads/pr-zanata-parent-27
  Home:   https://github.com/zanata/zanata-common
  Commit: 974d1aa0109534e6d7526bad3634343d44c502a0
      https://github.com/zanata/zanata-common/commit/974d1aa0109534e6d7526bad3634343d44c502a0
  Author: Ding-Yi Chen <dingyichen at gmail.com>
  Date:   2016-03-18 (Fri, 18 Mar 2016)

  Changed paths:
    M pom.xml

  Log Message:
  -----------
  chore(dependency): zanata-api update to 3.8.4