Add support for text

[fryguybob]

(Imported from http://code.google.com/p/diagrams/issues/detail?id=29. Original issue from byor...@gmail.com on May 13, 2011, 09:35:36 PM UTC)

Of course diagrams will eventually need to support the inclusion of text in diagrams. However, it should be noted that text is a GIANT CAN OF WORMS. Of giant worms. Like the ones in Dune.

See TextSupport for a discussion of the relevant issues and a possible plan of attack.

[fryguybob]

(Imported. Original comment by byor...@gmail.com on June 8, 2011, 05:03:32 PM UTC)

Basic text support now exists. There is much room for improvement but we should open more specific tickets for further enhancements.