fix fairly uncontroversial stuff in my.core like
- line spacing, which isn't too annoying (e.g. unlike many inline whitespace checks that break vertical formatting)
- unused imports/variables
- too broad except
- restructure query code for cli, some test fixes
- initial query_range implementation
refactored functions in query some more
to allow re-use in range_range, select()
pretty much just calls out to a bunch
of handlers now
