added support for normalizing CNAMEs
Merge branch 'master' of https://github.com/adler/awsheet

Conflicts:
	awsheet/helpers/instancehelper.py
Merge branch 'master' of https://github.com/adler/awsheet
cnamehelper: normalize cname now defaults to true

by default underscores in the puppet will be replaced with dashes
when the cname is generated from the puppet role name
in progress
Allow explicit Heet-level project base name definition at Heet creation time
Add SecurityGroupRule type at top-level namespace for users to import
SecurityGroupHelper Alpha version ready for testing!
Merge branch 'sg_refactor' of github.com:jl2501/awsheet into jl2501-sg_refactor
add ipaddress to requirements.txt