unify form and renderer

[donrestarone]

trafficstars

currently the form renderer and snippet renderer are different. We need to rename the tabs marked below as:

1. View Interface => Interface
2. View Connections => Connections
3. View Form => Rendering
4. API Actions => Actions

In the case of API Actions, the button should now be a tab (and still lead to the API Actions page)

Remove form snippet column from the API Namespaces table (illustrated below)

Place the documentation for it under Rendering (include both the rendering snippets and the form)