More elegant way of getting Type's name

Hey, Jeff.

*Thank you for your bloggo application. I'm using it as a reference revmgo + revel implementation. Like the architectural decisions you've made.*
Why not to use standard `Name()` method in `model.go` in order to get names of Types.

**References**:
[Docs: Package reflect](http://golang.org/pkg/reflect/#Type)
[Golang-nuts: Reflection type.Name() weirdness](https://groups.google.com/forum/#!topic/golang-nuts/WQjc_ncOngo)