0.2.0 release: refactor project layout, add setup.org, libraryofbabel.org, README.md, extend index.org, update default dependencies, update core.org

generated org files now placed in src & test subfolders
generated org files now refer to setup.org for shared config
tangle.sh updated to include libraryofbabel.org
index.org now has more info about testing & working with REPL
index.org refers to downgraded CLJS dep for compatibility with austin & added CLJX hooks
core.org includes example template use & description