Promote unreachable code to being a lint attribute
Fix a bug with HashMap::consume
Rewrite deriving(Decodable, Encodable)

Now it uses the generic deriving code and should in theory work in all cases.
Implement unimplemented methods in ebml
mv the raw pointer {swap,replace}_ptr to std::ptr
rustc: adjust span for error message to not trim last letter
auto merge of #6863 : huonw/rust/error-span, r=thestinger
ptr: replace unnecessary unsafe code
librustc: Don't require `pub extern` to make extern functions visible
auto merge of #6857 : alexcrichton/rust/ebml-fixes, r=pcwalton

Also provides a method of serializing `char`.
xfail-fast the deriving test
Add as_c_str method on strings
bool: rm functions duplicating methods
fix tutorial lint warnings
auto merge of #6862 : thestinger/rust/swap, r=bstrie

I don't like the `util` module in general, and `ptr` is a much better place for these.
auto merge of #6864 : thestinger/rust/bool, r=pcwalton
extra::term overhaul
Use find_equiv in term
rustpkg borrowed pointers
Only output colors if colors are supported (removes burden from caller)