Merge pull request #19 from alexcrichton/update

Enable the slicing syntax feature
Use XXHash instead of SipHash
Make some values consts
Misc cleanup
Update docs location
Remove unneeded import
Drop libstd requirement
Fix docs
Upgrade to rustc 0.13.0-dev (77f44d4a7 2014-10-29 20:16:57 +0000)
Merge pull request #22 from kmcallister/rustup

Upgrade to rustc 0.13.0-dev (77f44d4a7 2014-10-29 20:16:57 +0000)
Clean up warnings
Update for Equiv DST changes
Move and rename PhfMap stuff
Convert PhfSet to new naming conventions
Switch over PhfOrderedMap to new naming scheme
Convert PhfOrderedSet to new naming conventions
Fix docs
Update README
Fix doc header size
Add deprecated reexports