[zanata/zanata-server] a60355: Avoid logging GWT StatusCodeException: 0

[GitHub]

  Branch: refs/heads/fail-if-js-warning
  Home:   https://github.com/zanata/zanata-server
  Commit: a6035555b3fcd5cafe09d237453dac1b7187daba
      https://github.com/zanata/zanata-server/commit/a6035555b3fcd5cafe09d237453dac1b7187daba
  Author: Sean Flanigan <sflaniga at redhat.com>
  Date:   2016-01-20 (Wed, 20 Jan 2016)

  Changed paths:
    M zanata-war/src/main/java/org/zanata/webtrans/client/rpc/AbstractAsyncCallback.java

  Log Message:
  -----------
  Avoid logging GWT StatusCodeException: 0