GitLab

1) Parameters parsing in inner solvers
2) Parameters parsing in trillions solvers
3) Added xml parsing test
4) Trilinos without mpi support will not compile, disable trillions
solvers if compiling without mpi

Basic functionality

1) Condest added to final solver interface
2) SolverMaster hided from user
3) Examples fixed with new Solver Class
4) Examples using LLVM coding standarts