Merge pull request #69 from pwaller/log

Move to rootpy logging, improve messages
Add a few more new colours
Try to set a sensibl lower range on stacked plots
Use rootpy logger and simplify __init__
'range' action became 'binrange'
ttree draw improvements
Use filemagic to do mimetype detection
Remove pymongo and pexpect dependencies for now
Remove composite from development.ini
Use log instead of print
Skeletal showshape function
Rename multitraverser select to select_ for now
Fix ttree scan
Support .md for markdown files
Clean up development.ini
Remove version.txt generation from setup.py
Update version and dependencies
Remove obsolete init
Author = rootpy developers
Fix action thunk in case of one parameter