Many functional unimportant code style fixes

Code styling fixed in some bigger files. 
There's a big potential for a collision with another pull request.

game.cpp is not part of this pull.
Part 1: client.cpp (!) content_cao.cpp content_mapblock.cpp environment.cpp tile.cpp
Part 2: craftdef.cpp guiTable.cpp mapblock_mesh.cpp nodedef.cpp pathfinder.cpp rollback.cpp