First cut at adding CAS statements
No need to make the caller supply the CAS flag in the binding statement
Update AUTHORS
cleaned up CAS branch a bit
Updated Readme.md

Added package status right at the top so people are aware of what grade the package currently is. Formatted the text a bit for the feature list.

Added reference to the roadmap page so people can see what we are planning in the future for the project.
better test cases
Merge branch 'master' of https://github.com/tux21b/gocql