Add additional citations to Michener and Jones 2012
Clarify value of metadata vs semantics
Merge pull request #129 from ethanwhite/clarify-metadata-value

Clarify value of metadata vs semantics
Minor cleanup to Sections 1 and 2 from Zack Brym
Merge pull request #128 from ethanwhite/michen-jones-cites

Add additional citations to Michener and Jones 2012
removed contractions -KL
Merge pull request #132 from klocey/master

Removed contractions
Merge pull request #131 from ethanwhite/zacks-fixes

Minor cleanup to Sections 1 and 2 from Zack Brym