std::libc: rustdoc indicates reexports now
auto merge of #9844 : bytbox/rust/master, r=alexcrichton
Remove unused abi attributes.

They've been replaced by putting the name on the extern block.

  #[abi = "foo"]

goes to

  extern "foo" { }

Closes #9483.
std::vec: move documentation from impls to traits.

This means the text is visible in rustdoc.
Removing ccdecl

as per https://github.com/mozilla/rust/pull/9606#discussion_r6930872
auto merge of #9848 : huonw/rust/move-trait-doc, r=alexcrichton

This means the text is visible in rustdoc.
auto merge of #9606 : steveklabnik/rust/abi_removal, r=alexcrichton

They've been replaced by putting the name on the extern block.

  #[abi = "foo"]

goes to

  extern "foo" { }

Closes #9483.
support for GNU configure syntax