Update to Google Universal Analytics and fix multiple character encoding issues

This update (0e904af) brings with it the following changes:

Bugfixes:

Fix character encoding issues when doing the following:
- adding configuration set values
- modifying configuration values
- modifying site names
- storing assignment scores
- creating message box tags
- creating objects
- creating containers
- modifying glossary entries
Avoid a database error if an invalid number is specified when storing or updating an object or container.