Enable correct total time display in VCR for YouTube videos.

Before this, the VCR showed total time as 00:00:00 for YouTube
videos just after page loaded. The correct total time is shown only
after the user clicks Play button.
Slight improvements.
Fix for HTML5 mode.
Fixing failing Jasmine tests.

Isolating failing tests.
Fixed tests.
Enabled update of VCR total time after YouTube video loads.
Enabled back all tests.
Fixed broken tests.
Updated helpers.coffee file.
Fixing console.log tests.
Slight markup.
Debugging.