Work in progress on well flux equations.
Renames variables dtpv->pvdt and Rs->rs.
Work in progress on well flux equations.
Remove accidentally added file.
Initialize and update qs primary variable.
Encapsulate DUMP contents in "do { ... } while (0)"

This makes the macro more function-like and easier to read.
Merge remote-tracking branch 'atgeirr/fully-implicit' into fully-implicit