Create man pages for rust tools
Add new manpages to install script
Updated rustpkg man page to match 0.7
Constrain maximum lifetime of stack closures that capture variables to
be limited by the innermost repeating scope.

Fixes #7336.
Don't loop infinitely on 0-size structs in repr

Closes #7625
Added overloaded Add and Sub traits for pointer arithmetic

Implemented ptr arithmetic for *T and *mut T. Tests passing
Document std::libc::c_void.
Fixed examples

The examples were still using `core::` instead of `std::`
All of the examples needed a `use std::rand;` at the top to compile
Most of the examples had
    `rng = rand::rng();`
instead of
    `let mut rng = rand::rng();`
Add a `mut_split()` method for dividing one `&mut [T]` into two
Add an identifier to TypeParameterDefs and use it to pretty print type parameters
auto merge of #7631 : MarkJr94/rust/ptr_arithmetic, r=thestinger

Added Add and Sub traits for pointer arithmetic. Any type that is a ```std::num::Int``` can be added to or subtracted from a pointer. Also my additions did not require any unsafe code, and the operators themselves are safe. Fixes #2122.
auto merge of #7698 : nikomatsakis/rust/issue-2951-type-parameter-names, r=cmr

Fixes #2951
auto merge of #7683 : alexcrichton/rust/issue-7625, r=thestinger

Closes #7625
Convert json Reader to iterators

This is much faster for strings, and eventually when there is a
buffered reader of some sort.

Reading example.json 100 times before was around 1.18s.
After:
- reading from string 0.68s
- reading from file 1.08s (extra time is all in io::Reader)
auto merge of #7690 : kevinmehall/rust/document-c_void, r=huonw

I added documentation for when to use and not to use `c_void`, since it tripped me up when I started. (See issue #7627)
remove unused imports
unnecessarily mutable variables
unused variable
auto merge of #7691 : nikomatsakis/rust/vec-split-method, r=thestinger

I don't think we have this yet. This makes `&mut [T]` much more flexible.

r? @strcat (or whomever)
auto merge of #7693 : korenchkin/rust/fixdoc_rand, r=cmr

All of the examples were still using `core::` instead of `std::` and  needed a `use std::rand;` at the top to compile
Most of the examples had
    `rng = rand::rng();`
instead of
    `let mut rng = rand::rng();`