Feature/nightly headercheck
Adds a headercheck to the nightly build
Also fixes headercheck for current master and renames TORTURE_TESTS to FEM_TORTURE_TESTS to not inherit from ALUGrid
Edited by Martin Alkämper
Adds a headercheck to the nightly build
Also fixes headercheck for current master and renames TORTURE_TESTS to FEM_TORTURE_TESTS to not inherit from ALUGrid