Smuxi 1.2.1 source release

• Dropped Glade# build dependency. The deprecated Glade library is no longer used. GTK+ and GTK # are still needed.
• Replaced Freenode with Libera.Chat
• Several crash fixes, one that crashes the UI when you save a new server
• New translations: Georgian, Basque, Croatian
• Bump minimum Mono version to 5.18
• Dropped Transifex as a translation source. All translation updates are now coming only from the GNOME project for consistency/quality.

Smuxi 1.1 source release

• Updated EmojiOne catalog for supporting all 2373 emojis ❤️
• Revamped preferences dialog
• Bitcoin message patterns
• Adds CertFP support to authenticate against IRC services
• More reliable Twitter support
• More reliable link detection
• Mono 4 and newer support
• More translations