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User visible:
- renamed the --print-version option to --version-numbers
- In plain text output, print the names of extras above their dependencies
instead of next to them, which happened to look as if they belonged to the
dependency specifications themselves.
- documented the meaning of annotations and colors in the output
- made the script entry point recognize option defaults which can be set
using the arguments option of the buildout egg recipe, for example
Bug fixes:
- In plain text output, made sure that subtrees are printed at a path with
extra dependencies occuring as late as possible, if at all.
Organisation:
- improved example buildout configuration
- added tests for graph reduction