publics/net @ 29704b8f8f57fa48a0d8237fc20ed7c6744b86b1

Chris Broadfoot 1bc0720082 context: Add ctxhttp package.		%!s(int64=10) %!d(string=hai) anos
..
ctxhttp	1bc0720082 context: Add ctxhttp package.	%!s(int64=10) %!d(string=hai) anos
context.go	b6fdb7d8a4 context: Be clear that users must cancel the result of WithCancel.	%!s(int64=11) %!d(string=hai) anos
context_test.go	76c2dd9e94 context: Increase a gccgo-specific alloc limit.	%!s(int64=10) %!d(string=hai) anos
withtimeout_test.go	fbe893ddcd go.net: use golang.org/x/... import paths	%!s(int64=11) %!d(string=hai) anos