Merge pull request #260 from eads/0.9-beta7

fix markdown bug, closes #259
Merge pull request #261 from eads/0.9-beta7

Clean up error handling
Merge pull request #263 from eads/0.9-beta7

using colored text screws up gnureadline, restore gnureadline dep
Merge pull request #265 from eads/0.9-beta7

don't use color in raw_input when configuring, closes #121
Merge pull request #267 from eads/0.9-beta7

catch blatantly misconfigured s3, closes #229