Reduce font-size of error messages (bug 927506)

This branch makes the error message font-size smaller to avoid scrolling.
![web_pay](https://f.cloud.github.com/assets/1514/1448207/6f0bdd1e-4253-11e3-94c1-10a34ba69b4e.png)

Fixes the use of TemplateView which were borken.