replace 'gain' by 'volume'; close #76
use consistent coding style; close #70
HTMLMediaElement.startDate is no longer defined
Cleaning up deviceId stuff
Space after period
Replace spaces before commas due to line breaks

perl -0 -pi.0 -e 's!(\n\s+)(</code)(>,)!!msg'
try to markup dB SPL
Spelling: cannot
Spelling: exactly
Spelling: interface
Spelling: limitations
Spelling: possible
Spelling: satisfied
Spelling: with
ED: intro
significant meaning: released/detached in Terminology-source
Spelling (en-us): behavior getusermedia.html
ED: anchor detached in Terminology-source
Replace spaces before periods due to line breaks

perl -0 -pi.0 -e 's!(\n\s+)(</code)(>.)!!msg'
ED: it-is-bound-to-have in Setting (Source Setting)