initial work on audio/video
adding executive summary part 2
update based on nicks nits
initial work on audio/video
Merge branch 'audioVideo' of github.com:nickdesaulniers/slides into audioVideo

Conflicts:
	slides/day2-section4-audio-video.html
Merge pull request #14 from mikehenrty/executive-seminar

adding executive summary part 2
Merge pull request #10 from nickdesaulniers/audioVideo

initial work on audio/video
Merge pull request #15 from iamroody/master

slides from wangyan
undo change to intro Fixes #16
Merge pull request #17 from nickdesaulniers/intro

undo change to intro Fixes #16