update deps to current version numbers
remove dangling swap
replace duck-stream pwd with java
update contrib.json to data.json
add file utility function to replace contrib.io/file
remove contrib.def for defonce usage
strint/<< macro to core.incubator/<<
contrib.logging to tools.logging
incubator/<< should be strint/<<
update sql to java.jdbc
replacement deps for error-kit (slingshot) and datalog (datalog)