go1.4: ignore most of runtime package
go1.4: fixed some packages
go1.4: fixed reflect package
go1.4: added syscall.use no-op
go1.4: fix for reflect.memcopy
go1.4: fixed "range c {" for channels
go1.4: added runtime.Stack
go1.4: added native implementations for sync/atomic.Value
go1.4: check for Go version 1.4
go1.4: encoding/gob is supported now
circle: install go1.4rc2
go1.4: skip reflect.TestFuncLayout