Merge branch 'develop' into merge_improved_chebychev_solver

CHANGELOG.md

CMakeLists.txt

cmake/compile_options.txt

cmake/compiler_config.txt

cmake/source_list_KKRhost.txt

cmake/source_list_KKRimp.txt

cmake/source_list_PKKprime.txt

cmake/source_list_rhoq.txt

cmake/source_list_rllsll_test.txt

cmake/source_list_voronoi.txt

docs/settings_ford.md

source/KKRhost/bzirr3d.f90

source/KKRhost/kkrmat01.F90

source/KKRhost/main0.F90

source/KKRhost/main1b.F90

source/KKRhost/main1c.F90

source/KKRhost/main_all.F90

source/KKRhost/mixnocospin.f90

source/KKRhost/renorm_lly.f90

source/KKRhost/rhooutnew.f90