Bugfix:  Fix missing break statement in generate_stats.

Signed-off-by: nppangband <nppangbanddev@verizon.net>
Warning fixes
Remove dead code
Put declaration of ang_sort in the proper place
Fix Clang warnings
Merge branch 'warning-fixes-clang' of https://github.com/BardurArantsson/NPPAngband into work_in_progress