Vocabulary Section Update

The observant among you might notice that the Vocabulary section for all lessons has a slightly different look to it.  Gone are the old bulky playback buttons.  They have now been replaced with the sleeker playback buttons featured in the Word Bank.  Initial loading times for the page might be greater, but I believe the buffering system and overall performance should be better.  Over time, I will be adding extra related vocabulary to older lessons, so this should hopefully improve the overall experience for pages with a lot of audio entries.