Make bootstrap.py script output readable

[slinkp]

It's rather verbose and hard to read currently, due to output of subprocesses (make, etc).
One possible solution:

• install  http://lobstertech.com/fabulous.html
• Instead of paver.easy.sh, use a wrapper or replacement that logs to two places:
  • everything to a file
  • stdout/stderr handled by  fabulous.logs.TransientStreamHandler, and colorized by log level
• On errors, log a message telling people to look at the log file for complete error messages, and send that output to the ebcode mailing list