This commit introduce a model traits class that encapsulates a few properties,
such as NumEq, NumComponents as well as the specifications on active processes
(EnableAdvection ... ). The respective property tags become obsolete and can be
deleted.

* [test][richards] Fix solver include
  (Used to compile before due to indirect include over newtoncontroller.

Bernd Flemisch authored 7 years ago and Timo Koch committed 7 years ago

Treat all files `*volumevariables*` and `*localresidual*`.