doc: update go1.8.txt
doc: update go1.8.txt

Automated update after manual classification using x/build/cmd/writenotes.

Change-Id: Ie92f501d301c1e2245954439da197812c09c1684
Reviewed-on: https://go-review.googlesource.com/32570
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

cloudflare/go,akutz/go,cloudflare/go,ImJasonH/go,polyverse-security/go,linux-on-ibm-z/go,nawawi/go,ImJasonH/go,polyverse-security/go,polyverse-security/go,linux-on-ibm-z/go,golang/go,josharian/go,goodlang/good,cloudflare/go,Cofyc/go,cloudflare/go,vsekhar/elastic-go,derekmarcotte/go,Cofyc/go,golang/go,codestation/go,CAFxX/go,CAFxX/go,nawawi/go,josharian/go,codestation/go,goodlang/good,goodlang/good,derekmarcotte/go,codestation/go,cloudflare/go,ImJasonH/go,polyverse-security/go,josharian/go,akutz/go,Cofyc/go,codestation/go,polyverse-security/go,Cofyc/go,CAFxX/go,codestation/go,golang/go,suncycheng/go,suncycheng/go,ImJasonH/go,Cofyc/go,ImJasonH/go,akutz/go,akutz/go,cloudflare/go,akutz/go,cloudflare/go,golang/go,josharian/go,nawawi/go,linux-on-ibm-z/go,cloudflare/go,josharian/go,nawawi/go,CAFxX/go,derekmarcotte/go,ImJasonH/go,vsekhar/elastic-go,codestation/go,suncycheng/go,suncycheng/go,josharian/go,CAFxX/go,nawawi/go,akutz/go,codestation/go,Cofyc/go,CAFxX/go,akutz/go,linux-on-ibm-z/go,ImJasonH/go,vsekhar/elastic-go,nawawi/go,vsekhar/elastic-go,linux-on-ibm-z/go,polyverse-security/go,Cofyc/go,golang/go,suncycheng/go,polyverse-security/go,linux-on-ibm-z/go,golang/go,goodlang/good,CAFxX/go,vsekhar/elastic-go,josharian/go,golang/go,vsekhar/elastic-go,nawawi/go,linux-on-ibm-z/go,derekmarcotte/go,goodlang/good,derekmarcotte/go,vsekhar/elastic-go,polyverse-security/go,josharian/go,golang/go,goodlang/good,akutz/go,CAFxX/go,derekmarcotte/go,goodlang/good,derekmarcotte/go,codestation/go,linux-on-ibm-z/go,christopher-henderson/Go,suncycheng/go,suncycheng/go,vsekhar/elastic-go,Cofyc/go,goodlang/good,suncycheng/go,derekmarcotte/go,ImJasonH/go,nawawi/go