added cascading dependency
added playground file
updated dependencies
added simple flow definitions
beginnings of cascading backend
initial implementation of commands->flow
added example my-func to pg
added method for :register, use example query in test
started implementing :generate
started implementing :store
build real cascading flow
first test actually executing a cascading flow
added store-text, replaced hardcoded commands with real query in test
bind field in load-text
beginnings of :projection and :code
invoke clj func from cascading operation
added load-tsv
added store-tsv
added store-clj, refactored pigpen function
added comment