Merge branch 'release/7.x-0.4' into develop
Variable silence in wave audio captcha.
Changing src attribute on existing audio element rather than creating a new element.
Loading localized audio captcha.
Variable silence in mp3 audio captcha.
Test of MPEG.
Changed the controls of the audio captcha from images to buttons.
Merge branch 'feature/1373-audio_captcha' into develop
Fixing missing audio captcha in IE.
Add title to captcha button images, for browsers that do not show the alt text
tagging version 7.x-0.5
Merge branch 'release/7.x-0.5'