mark "unsafe" package as not supported (fixes #170)
mark "unsafe" package as not supported (fixes #170)

jargv/gopherjs,rasata/gopherjs,albrow/gopherjs,jargv/gopherjs,gopherjs/gopherjs,roth1002/gopherjs,Archs/gopherjs,ebroder/gopherjs,ebroder/gopherjs,flimzy/gopherjs,bpowers/gopherjs,roth1002/gopherjs,albrow/gopherjs,gopherjs/gopherjs,Archs/gopherjs,ebroder/gopherjs,gopherjs/gopherjs,govlas/gopherjs,nmfzone/gopherjs,nmfzone/gopherjs,jeremyschlatter/gopherjs,Yanjing123/gopherjs,Archs/gopherjs,jeremyschlatter/gopherjs,govlas/gopherjs,gopherjs/gopherjs,roth1002/gopherjs,bpowers/gopherjs,govlas/gopherjs,jargv/gopherjs,gopherjs/gopherjs,rasata/gopherjs,jeremyschlatter/gopherjs,albrow/gopherjs,flimzy/gopherjs,flimzy/gopherjs,nmfzone/gopherjs,Yanjing123/gopherjs,rasata/gopherjs,Yanjing123/gopherjs,bpowers/gopherjs