Make line endings consistent in a_heretic.cpp

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2623 86ba831e-150c-0410-ab35-e06eaae15ed9
Fix missing tics for D'Sparil's walk states

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2624 86ba831e-150c-0410-ab35-e06eaae15ed9
Remove hack previously added due to then-incorrect-for-Heretic sound engine behavior. I still need to allow "loud" sounds to have multiple instances, however.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2625 86ba831e-150c-0410-ab35-e06eaae15ed9
Basic support for Heretic 3-level beta IWAD.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2626 86ba831e-150c-0410-ab35-e06eaae15ed9
Fix ugly code that made rice sad. ;)

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2627 86ba831e-150c-0410-ab35-e06eaae15ed9