SOGo v2.3.12

Enhancements

• [web] updated CKEditor to version 4.5.9
• [web] CKEditor: switched to the minimalist skin
• [web] CKEditor: added the base64image plugin
• [web] CKEditor: added the pastefromword plugin (#2295, #3313)
• [web] added Turkish (Turkey) (tr_TR) translation - thanks to Sinan Kurşunoğlu

Bug fixes

• [core] sanity checks for events with bogus timezone offsets
• [core] strip X- tags when securing content (#3695)
• [core] properly handle flattened timezone definitions (#2690)
• [eas] when using EAS/ItemOperations, use IMAP PEEK operation
• [web] fixed recipients when replying from a message in the Sent mailbox (#2625)
• [web] fixed localizable strings in Card viewer
• [web] properly encode HTML attributes in Contacts module to avoid XSS issues
• [web] handle c_mail field format of quick record of contacts of v3 (#3443)
• [web] fixed all-day events covering a timezone change (#3457)
• [web] fixed display of invitation with a category (#3590)