The inner guts of Bitbucket

New channel EuroPython 2014: title sample judged 'pick' (Mostly solid technical conference talks and tutorials, but mixed with lightning talks, closing ceremonies, and off-topic); passed a second screen for sellers/exam-prep/re-uploads; 3 of 3 sampled transcripts showed teaching, 0 not; titles picked one by one, checked strictly; oEmbed verified.