Fix unicode characters in History-View

[mr-rob]

Fixes #9

[mister-roboto]

Ratcliff Robin your emails are not known to GitHub and thus it is impossible to know if you have signed the Plone Contributor Agreement, which is required to merge this pull request.

Learn about the Plone Contributor Agreement: http://docs.plone.org/develop/coredev/docs/contributors_agreement_explained.html How to add more emails to your GitHub account: https://help.github.com/articles/adding-an-email-address-to-your-github-account/

[mister-roboto]

@mr-rob thanks for creating this Pull Request and help improve Plone!

To ensure that these changes do not break other parts of Plone, the Plone test suite matrix needs to pass.

Whenever you feel that the pull request is ready to be tested, either start all jenkins jobs pull requests by yourself, or simply add a comment in this pull request stating:

@jenkins-plone-org please run jobs

With this simple comment all the jobs will be started automatically.

Happy hacking!

[jensens]

CLA is missing.