Fix two HTTP related bugs

• fix an error where the content wasn't decoded properly
• fix a bug where POST parameters are submitted as GET parameters

TAP API

Adding TAP API

Second pre-0.1 beta release

This is a beta release in advance of a production 0.1 release expected in Jan. 2014. It adds updated support for python3 and a largely complete users manual.

Several open issues will be addressed prior to v0.1.