Update the unsafe docs for the new type implementation. Please correct as needed.
Update the unsafe docs for the new type implementation.
Please correct as needed.

R=rsc,r
DELTA=10  (4 added, 1 deleted, 5 changed)
OCL=31305
CL=31305

tianon/debian-golang,nightlyone/golang,dsriram/golang,tianon/debian-golang,ssrl/go,h8liu/golang,gnanderson/go,nightlyone/golang,nightlyone/golang,bdwalton/debian-golang,apparentlymart/golang,pombredanne/go-deleteme,bdwalton/debian-golang,tv42/old-go,apparentlymart/golang,h8liu/golang,h8liu/golang,pombredanne/go-deleteme,gnanderson/go,gnanderson/go,nightlyone/golang,tv42/old-go,tianon/debian-golang,pombredanne/go-deleteme,gnanderson/go,tianon/debian-golang,pombredanne/go-deleteme,nightlyone/golang,ssrl/go,ssrl/go,dsriram/golang,tianon/debian-golang,bdwalton/debian-golang,apparentlymart/golang,dsriram/golang,apparentlymart/golang,h8liu/golang,bdwalton/debian-golang,bdwalton/debian-golang,tv42/old-go,h8liu/golang,apparentlymart/golang,tv42/old-go,dsriram/golang,nightlyone/golang,ssrl/go,h8liu/golang,tv42/old-go,ssrl/go,tv42/old-go,dsriram/golang,gnanderson/go,apparentlymart/golang,bdwalton/debian-golang,apparentlymart/golang,tianon/debian-golang,h8liu/golang,dsriram/golang,gnanderson/go,ssrl/go,gnanderson/go,tv42/old-go,nightlyone/golang,pombredanne/go-deleteme,tianon/debian-golang,ssrl/go,bdwalton/debian-golang,dsriram/golang,pombredanne/go-deleteme,pombredanne/go-deleteme,tianon/debian-golang,bdwalton/debian-golang