collections, unicode: Add support for NFC and NFKC
Add comment about speed in FAQ.

Fixes #11174.
Be more consistent with "Hello, world!"
Correct RFC reference in time::Tm::rfc3339 docs

Fixes #16158
Change strptime::match_strs to use borrowed rather than owned strings

Also modernise a few constructs in match_strs().
Fix API docs css reversing elements that it shouldn't

remove unneeded `pre.rust a' selector

move transform into `.test-arrow`

fixes #16138
Use hello_world instead of the guessing_game
Move caret under the 'x' variabe
collections: Implement Eq for DList, RingBuf, TreeMap, TreeSet
collections: Implement Ord for DList, RingBuf, TreeMap, TreeSet
collections: Implement FromIterator/Extendable for BitvSet
Fix misspelled comments.
mk: Add missing colon
doc: Make sure all doc titles say 'Rust'. #12466
auto merge of #16128 : steveklabnik/rust/speed_faq, r=brson

Fixes #11174.

I'm open to revising this text, but I figured it gets across the basics.
Use cargo new.

Now that this feature exists, we should use it.

Fixes #16078
Add note about Cargo.lock
Fix manual regarding attribute placement.

Fixes #15494.
auto merge of #16160 : EduardoBautista/rust/use-bang-at-end-of-hello-world, r=alexcrichton

Further into the guide "Hello, world!" is used instead of "Hello, world".
Rewrite read_u32v_be() and write_u32_be() to make sure that all memory access is properly aligned