Fix typos in README (ref #4)
Move autoloader to PSR-4
Add OutputFormatter to handle improved formatting

Supported tags:
* <fg=#FF00FF> text </fg=#FF00FF>
* <fg=#FF00FF;bg=white> text </fg=#FF00FF;bg=white>
* <fg=#FF00FF;bg=white;options=bold> text </fg=#FF00FF;bg=white;options=bold>
* <fg=#FF00FF;bg=white;options=inverse;options=underlined> text </fg=#FF00FF;bg=white;options=inverse;options=underlined>