Docs site could use some love

[mikix]

http://docs.smarthealthit.org/client-py/

• It currently documents release 3.0.0, which is very out of date. #156
• It should be built automatically from tag creation
• Move the build scripts into a docs/ folder so it's more obvious that "this is the docs stuff" #159
• Beautification?

[mikix]

Updating the site to the current release is PR #156