Merge features from ledtable library

[niccokunzmann]

I am a developer of the ledtable library.
There are features which can be merged into this library:

• 5px font with variable width
• allowing programming and viewing though a virtual led-matrix as a computer program
• html color names?
• examples

What are your thoughts?

[ladyada]

we'd be more likely to add it if it used the Adafruit_GFX commands but as is, its different enough - why not just keep it separate?