add federal higher education dataset navigation#3

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crccheck wants to merge 11 commits intoryanpitts:masterfrom crccheck:ipeds

+171

Commits on Jul 19, 2014

document how variables are unique for every year
crccheck
committed

Commits on Jul 20, 2014

add basics to generating repots
crccheck
committed

Commits on Jul 22, 2014

Commits on Feb 26, 2015