Support for colored output

[koraktor]

This should provide an easy way to use terminal colors in output strings.

puts "#{Color.RED} This #{Color.BLUE} is #{Color.GREEN} a #{Color.YELLOW} colorful #{Color.BRIGHTRED} text#{Color.RESET}."

Maybe even auto-magically using specific tokens:

puts "%red This %blue is %green a %yellow colorful %brightred text%reset."

[koraktor]

This is in the works now and will find its way into development soon.

Right now, I prefer a syntax like that: puts "r{This} b{is} g{a} y{colorful} R{text}."

[koraktor]

This syntax found its way into version 0.6.0. No background colors etc. yet, though.