This update to roundcubemail 1.1.8 fixes security issues and bugs.

The following vulnerability was fixed:

- CVE-2017-6820: XSS issue in handling of a style tag inside of an svg element (boo#1029035)

The following bugs were fixed:

* bug where mail content frame couldn't be reset in some corner cases
* regression where groups with email address were resolved to its members' addresses
* group/addressbook selection is retained on page refresh
* signature couldn't be added above the quote in Firefox 51
* microseconds macro (u) in log_date_format works