Log Message:
mail/roundcube: update to 1.4.8

Update roundcube to 1.4.8, security release.

RELEASE 1.4.8
-------------
- Security: Fix potential XSS issue in HTML editor of the identity signature \ 
input (#7507)
- Managesieve: Fix too-small input field in Elastic when using custom headers (#7498)
- Fix support for an error as a string in message_before_send hook (#7475)
- Elastic: Fix redundant scrollbar in plain text editor on mail reply (#7500)
- Elastic: Fix deleted and replied+forwarded icons on messages list (#7503)
- Managesieve: Allow angle brackets in out-of-office message body (#7518)
- Fix bug in conversion of email addresses to mailto links in plain text \ 
messages (#7526)
- Fix format=flowed formatting on plain text part derived from the HTML content \ 
(#7504)
- Fix incorrect rewriting of internal links in HTML content (#7512)
- Fix handling links without defined protocol (#7454)
- Fix paging of search results on IMAP servers with no SORT capability (#7462)
- Fix detecting special folders on servers with both SPECIAL-USE and LIST-STATUS \ 
(#7525)
- Security: Fix cross-site scripting (XSS) via HTML messages with malicious svg \ 
content [CVE-2020-16145]
- Security: Fix cross-site scripting (XSS) via HTML messages with malicious math \ 
content