first round of editorial fixes (closes #21, #24)
removed conformance section (closes #2)
removed structure section (closes #22)
Removed "other aspects of the CG's work" section (closes #25)
merged methodology with use stories section (closes #26)
removed "status" of specification from tables (closes #9)
Reworeded conneg requirement (closes #18)
Merged Storage requirements (closes #15)
Removed video playback requirement (closes #14)
added "and relevant content" (closes #19)
reworded sprite animation requirement (closes #13)
reworded URI scheme requirements (closes #12)
Generalized privacy and security to all requirements (closes #11)