v2.28.1

• Add tags to applications to search them easily (@nmitsou, @saveman71)
• Fix bug on some phone numbers displaying invalid country codes
• New settings layout for older Android devices
• URL search (@EnricoMonese)
• Sound and display settings (@EnricoMonese)
• Home button behavior should now work as expected (@psykzz)
• Remove favorite (@psykzz)
• Drop support for android 2.3, sorry :( See #564
• Small tweaks for keyboard display