Changelog for RT#98161

Breakage introduced in 8d005ad9, fixed for good by a combination of 5268b1da
135ac69d and 95da0f23
(travis) Sorry metacpan, your mirror is simply shit >:(
Make sure the resolve_cond shim attempts to lint the right thing

This only matters in compat mode, so sod testing
Make sure IO::Handle is loaded - missing stubs on older perls

Also adjust the documentation in the wake of the e9f71ab2a change
Move and simplify a chunk of parser code

No functional changes
Skip malformed relationships in SQLT parser instead of vague warnings