added litreview2 key: Hacking Politics
Added litreview2
Added marked-up .xoj file with @decause annotations/highlights
Added @decause annotated version of tl;dr chapter, rendered .pdf file
Merge pull request #611 from tconroy/master

added litreview2 key: Hacking Politics
Merge pull request #612 from Honeybunch/master

Litreview 2 link
Merge pull request #613 from xingnx/master

Added litreview2
Totally unimportant commit that students should completely ignore ;)
Added quiz 2