Moved sample nodes to example since they aren't very generic
Finished validation logic for simple form re-rendering semantic. Implemented with single example.
Most of JSON single post validation is done, not tested so probably small bugs.
Implemented two differenet validation adding semantics, through node attributes or independently in Form declaration.
Setup ability to perform header error message
Build positional insert command allowing insertion of nodes dynamically at any location.
Added several generic validators.
Implemented __str__ for several core components for easier debugging.
Switched example nodes to use a base template horiz.html for bootstrap horizontal layout.
Built out Check class which handles validation profiles.