0.4

Changes since 0.1:

• Added --prompt <prompt> to set Rofi prompt (default: "Search") (thanks @karlicoss)
• Added --search-mesg <message> and --result-mesg <message> to display text in Rofi's message UI element before/after search (calls Rofi with --mesg <message>) (thanks @ickerwx)
• Fixed option parsing bug (thanks @ickerwx)
• Fixed issue where --open-with didn't work in some environments
• Changed from deprecated cgi.escape to html.escape