Convert constructors to new conventions

[brson]

The new convention is as so:

struct Kitty {
}

impl Kitty {
    static fn new() -> Kitty { ... }
    static fn new_with_claws(claws: &[Claw]) -> Kitty { ... }
}

Still requires a snapshot before this can happen.

[bstrie]

Let me know when the snapshot happens and I can start helping out with this. Death to capitalized functions!

[sanxiyn]

Snapshot happened, right?

[bstrie]

It appears so, but nobody ever reminded me!

[brson]

There are still some offenders. SharedChan is the one i notice all the time.

[catamorphism]

Still needs to be done. Maybe a lint pass for capitalized function names would help identify places that need to change.

[catamorphism]

Visiting for triage.

[catamorphism]

Revisiting for triage. I'm not sure if this is complete, but implementing that lint pass I suggested would still be cool.

[catamorphism]

Not high priority, but Path still needs to be fixed

[catamorphism]

Actually, closing, and people should file bugs on the specific remaining ones.