Add minimum boto version to install

This should fix the ubunutu 12 failures on 2014.7
Merge pull request #59 from rallytime/boto_version

Add minimum boto version to install
Add tornado dep, this is used by the rest_tornado salt-api (saltnado)
Merge pull request #60 from jacksontj/master

Add tornado dep, this is used by the rest_tornado salt-api (saltnado)
Turn sshd debug logging to max
Fix onlyif regex