Some cleanup in std::io::buffered

`Vec` is now used for the internal buffer instead of `~[]`. Some module
level documentation somehow ended up attached to `BufferedReader` so I
fixed that as well.
Change types T,U to R (recv), S (sender) in libsync/comm.rs
iter: remove `to_owned_vec`

This needs to be removed as part of removing `~[T]`. Partial type hints
are now allowed, and will remove the need to add a version of this
method for `Vec<T>`. For now, this involves a few workarounds for
partial type hints not completely working.
auto merge of #13090 : thestinger/rust/iter, r=Aatch

This has been rendered obsolete by partial type hints. Since the `~[T]`
type is in the process of being removed, it needs to go away.
Register new snapshots
auto merge of #13092 : sfackler/rust/buffer-vec, r=thestinger

`Vec` is now used for the internal buffer instead of `~[]`. Some module
level documentation somehow ended up attached to `BufferedReader` so I
fixed that as well.
std: remove the `equals` method from `TotalEq`.

`TotalEq` is now just an assertion about the `Eq` impl of a
type (i.e. `==` is a total equality if a type implements `TotalEq`) so
the extra method is just confusing.

Also, a new method magically appeared as a hack to allow deriving to
assert that the contents of a struct/enum are also TotalEq, because the
deriving infrastructure makes it very hard to do anything but create a
trait method. (You didn't hear about this horrible work-around from me
:(.)
auto merge of #13093 : Havvy/rust/master, r=sfackler

This will make the types more readable in the documentation, since the letters correspond with what you should either be sending or expecting to receive.
auto merge of #13099 : FlaPer87/rust/master, r=huonw
auto merge of #13102 : huonw/rust/totaleq-deriving, r=thestinger

std: remove the `equals` method from `TotalEq`.

`TotalEq` is now just an assertion about the `Eq` impl of a
type (i.e. `==` is a total equality if a type implements `TotalEq`) so
the extra method is just confusing.

Also, a new method magically appeared as a hack to allow deriving to
assert that the contents of a struct/enum are also TotalEq, because the
deriving infrastructure makes it very hard to do anything but create a
trait method. (You didn't hear about this horrible work-around from me
:(.)