Stop time changes (fixes #15).
Remove Example Applications and Recording Impulse Responses sections.

Per http://www.w3.org/2011/audio/track/actions/80:  These sections are
of questionable value, and raise licensing concerns.
Revert "Remove Example Applications and Recording Impulse Responses sections."

This reverts commit f82682f2901fe5938d41fb158653e443212677ad.
Merge pull request #291 from cwilso/gh-pages

Stop time changes (fixes #15).