Small suggestions
Past/present consistency 

I put past tense any time we talk about the methods, but present for anything that will be shown in the paper
Spelling fixes. Adjust variable table so that the indicator functions are cleaner.
Added references to "social" graphs
Added citations to social databases
Fixed named subgraph picture to be horz.
Added RNA ref
Updated some defs. in the appendix (mainly fractional chromatic number).
More def. edits
Added extended table and small paper edits
Set longtables to span
Merge branch 'paper' of https://github.com/thoppe/Encyclopedia-of-Finite-Graphs into paper
Edits from Cara.
Added three standard graph theory texts
Added reference to graph theory texts
Resolved the "query" vs sequence issue in the text.
Resolved the comment "indexed invariant".
More small changes to the paper.
Added distinct seq. to paper and sections marking where each table is.
Added author affiliations.