Version 0.5.5

• Compatibility with girara 0.4.3
• Remove highlight-transparency setting. Set the alpha component of highlight-color, highlight-active-color and highlight-fg instead.
• Remove smooth-reload setting. Smooth reloading is now always enabled.
• Remove plain database backend. The sqlite database backend imports the data from the plain database the first time. sqlite is now a hard dependency.
• Fix a segfault if dbus is not enabled.