Version 1.6

• Fix portability issues with signed vs unsigned chars in the config file parser (thanks to Charlène Wendling).
• The -t option now allows fractional time values (e.g. -t 0.5 to display for half a second).
• Set window type hint to notification to avoid shadows and other decorations (thanks to Markus Demleitner).
• Add support for right-to-left text (thanks to @ilevi-code).