compiler.tree.propagation.recursive: Generalizing intervals in the propagation pass ignored types. Fixes #770.
math.vectors: Fix spacing.
math.vectors: Don't use macro with locals and cond in vif. Stack-checker/locals/macros/smart-combinators all need some work (a rewrite?), but meanwhile don't let it get in the way. Add tests.
webapps.mason: fix for new 2x logo.