Move static stuff from templates to dependency

[dve]

We have some classes where we use the templates just to copy code, without modifications (except the package) and we have the VaadinatorUtils maven module where we only have the AbstractPlainJpa class.
Should we not move the static stuff also into this module? This would make it easier to split up a project into sub-modules which all use the same infrastructure artifacts.

[sebastianrothbucher]

There's times where you need the package (like widgetset compilation). So far, those templates w/ only seem like KISS - providing an overall simple codebase (widgetset def, base presenter, ...). Or can you point to an example where it's really unnec? Still open for suggestions though...