Fixed the sample rate config option not being used. Added different soundblaster type options. Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1699
Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@569
Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@80