Design PVT DB scheme

 - db is entirely empty, but scheme is nearly complete
Update project-lvl readme
Include bibtex file in lit-library dir

 - upload initial bib refs to project bib file
 - ignore jabref backup file
 - ignore personal symlink to pdf dir
Update project README to describe database struc
Update project README to describe database struc
Merge branch 'master' of https://github.com/aswolf/unbiased-pscale
Minor change to README, adjust code block
Correct codeblock in litlib README
Fix lists in project README
Fix ordered list