Stores user-given CMake variables from the recent CMake run into cmake-args file. Install cmake-args file and CMakeCache.txt.

_known_solutions->empty() must not be called otherwise there might be
PETSc errors, because not all ranks might execute the same PETSc calls.

Fixes for Eve module and shared lib installations

Use multiple mesh infrastructure for balance calculation.

Tom Fischer authored 6 years ago and Dmitri Naumov committed 6 years ago

First forward it to the HT process creation procedure that forwards it
to the class Balance.

Use Conan per default when available

Developer having Conan installed typically also want to use it
for third-party library handling. This avoids strange things
happening when switching Conan to ON from the CMake GUI.

TM sigma_ip output for restart; vectorial sigma/eps output.