move shootout-mandelbrot to LinearMap, add depth argument
update copyright dates
Mention rust tool in the tutorial
Give the rust tool an own section in the tutorial.
Rewrited section about rust tool
Fix for issue 4875
auto merge of #5006 : tedhorst/rust/linear_mand, r=brson
auto merge of #5040 : Kimundi/rust/incoming, r=graydon
auto merge of #5039 : alexcrichton/rust/issue-4875, r=catamorphism

It looks like the type for the whole pattern wasn't being written back, so when privacy tried to look it up everything died.
Created libcore/private/intrinsics.rs, which aims to contain every
rustc intrinsic. Several files in libcore have been changed to use
these intrinsics.
As of yet, none of the intrinsics are documented.
Changed a test to use intrinsics.rs and changed a few lines that were too long, had bad whitespace, etc.