Implement BigInt and BigUint.
Move BigUint and BigDIgit to std::bigint.
Convert std::bigint to explicit self.
Impl Zero, One of BigInt, BigUint
Convert @[BigDigit] to ~[BigDigit]
reset LinearMap.size when expanding buckets
rt: Remove dead code from schedule_task()
doc: Fix some typos in the tutorial and reference manual
Merge pull request #4323 from cpeterso/cpeterso-schedule-task

rt: Remove dead code from schedule_task()
Merge pull request #4322 from cpeterso/incoming-doc-typos

doc: Fix some typos in the tutorial and reference manual
Merge pull request #4316 from ttaubert/issue-4277-linear-map-len

reset LinearMap.size when expanding buckets
Add some extra description for std::net
Merge pull request #4324 from steveklabnik/std_net

Add some extra description for std::net
core: convert an XXX into a FIXME.
std: Constify the bytes sent to Sha1::input

We are of course never going to modify the data, and this change allows us to
accept data from to_bytes::IterBytes types.
remove apparently-superfluous extra parens from types
Add Peter Williams to AUTHORS
really update mandelbrot to pipes
use newtype struct for devnull rather than type aliased record
fix sugarise-doc-comments.py shebang