Commit fixes Notifiation::update() for updates, that are not implicitly done.
Template-Fix to use @Html() for HTML tags from i18n messages file.
#43 Removes relative URLs to notifications, adds link to homepage in i18n.
#62 trim group title
Merge pull request #63 from socia-platform/62_trimGroupTitle

#62 trim group title
Merge branch 'master' into develop
Merge branch 'develop' of github.com:socia-platform/htwplus into develop