[zanata/zanata-platform] e48450: fix(ZNTA-2116): extract arrow function from bind

[GitHub]

  Branch: refs/heads/ZNTA-2116-tristate-checkbox
  Home:   https://github.com/zanata/zanata-platform
  Commit: e48450e25cb5b84fd8e8867b1c66184e11110917
      https://github.com/zanata/zanata-platform/commit/e48450e25cb5b84fd8e8867b1c66184e11110917
  Author: Earl Floden <efloden at redhat.com>
  Date:   2017-07-24 (Mon, 24 Jul 2017)

  Changed paths:
    M server/zanata-frontend/src/frontend/app/components/TriCheckbox/index.js

  Log Message:
  -----------
  fix(ZNTA-2116): extract arrow function from bind