Unicode theme

[skwerlman]

I was looking at this again, and started working on unicode theming. I'd like some feedback on a new fancy theme. It's based off the output format used by equo, the package manager for sabayon linux.

This is the theme as of now:

FANCY_THEME = {logging.CRITICAL: " ☢ ", # \u2622
               logging.ERROR:    " ☓ ", # \u2613
               logging.WARNING:  " ☛ ", # \u2618
               logging.INFO:     " ╠ ", # \u2560
               logging.DEBUG:    " ├ "} # \u251c

I would have liked to use ⚠ (\u26a0) instead of ☓, but it fails to appear in my text editor, so I'm not hopeful for terminal support.

[skwerlman]

Just realized that this also needs a special format, too, so I might as well look into implementing proper theming.

[rlafuente]

A simple theming approach would make most sense, 100% agree. Feel free to be bold and experiment, happy to accept any PR's!