fix CMAkeLists.txt

- delete search for libGPUGrid
- add search for libPMacc
solve rebase conflicts

- solve conflicts while rebase to mainline dev
update game of life 2D submit folder

- update *.cfg files for new tbg
- add bash tpl files for new tbg
on make install: perform copy of submit folder
fix runtime MPI_Comm_free warning

- GatherSlice.hpp: add finalize method for cleaning object
- Simulation.hpp: add finalize method for cleaning object
add blank line at end of file
add namespace PMacc in vampir trace filters
update finalize(): set all variables to invalid
fix typo
Merge pull request #28 from psychocoderHPC/fixPMaccExample

Fix libPMacc example game of life 2D