doc: some go1.6.txt additions
doc: some go1.6.txt additions

Many remain.

Change-Id: Icfe190c145a34f8aaa4d78e853dbc708962ba5ce
Reviewed-on: https://go-review.googlesource.com/16447
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

polyverse-security/go,golang/go,rachtsingh/gogojuice,codestation/go,suncycheng/go,kim-racktop/go,suncycheng/go,binarycrusader/go,derekmarcotte/go,cyberroadie/go,mwhudson/go,roth1002/go,Jordanzuo/go,derekmarcotte/go,josharian/go,gdey/go,nawawi/go,sndnvaps/go,fjballest/golang,nawawi/go,ganboing/go-esx,cloudflare/go,codestation/go,nawawi/go,Samurais/go,Samurais/go,akutz/go,derekmarcotte/go,Endika/go,momchil-velikov/go,gdey/go,kim-racktop/go,rachtsingh/gogojuice,mwhudson/go,akutz/go,fjballest/golang,deft-code/go,deft-code/go,ganboing/go-esx,deft-code/go,theif519/go,ganboing/go-esx,malvira/go,cloudflare/go,theif519/go,rachtsingh/gogojuice,mwhudson/go,Cofyc/go,theif519/go,4ad/go,kim-racktop/go,roth1002/go,golang/go,cloudflare/go,miolini/go,roth1002/go,cloudflare/go,binarycrusader/go,linux-on-ibm-z/go,ImJasonH/go,gdey/go,rachtsingh/gogojuice,suncycheng/go,Endika/go,Endika/go,nawawi/go,miolini/go,derekmarcotte/go,sndnvaps/go,Endika/go,Samurais/go,miolini/go,ImJasonH/go,akutz/go,vanloswang/go,4ad/go,fjballest/golang,sndnvaps/go,CAFxX/go,roth1002/go,ImJasonH/go,4ad/go,Endika/go,vanloswang/go,rachtsingh/gogojuice,odeke-em/go,gdey/go,codestation/go,momchil-velikov/go,odeke-em/go,roth1002/go,miolini/go,theif519/go,miolini/go,linux-on-ibm-z/go,Jordanzuo/go,golang/go,momchil-velikov/go,golang/go,4ad/go,CAFxX/go,vanloswang/go,kim-racktop/go,Jordanzuo/go,suncycheng/go,goodlang/good,Endika/go,malvira/go,4ad/go,malvira/go,suncycheng/go,cyberroadie/go,cyberroadie/go,christopher-henderson/Go,linux-on-ibm-z/go,deft-code/go,cloudflare/go,codestation/go,binarycrusader/go,Cofyc/go,codestation/go,goodlang/good,mwhudson/go,4ad/go,mwhudson/go,linux-on-ibm-z/go,roth1002/go,josharian/go,goodlang/good,cloudflare/go,josharian/go,sndnvaps/go,codestation/go,momchil-velikov/go,codestation/go,Jordanzuo/go,vanloswang/go,vsekhar/elastic-go,nawawi/go,akutz/go,vanloswang/go,fjballest/golang,4ad/go,nawawi/go,josharian/go,cyberroadie/go,Cofyc/go,Jordanzuo/go,cloudflare/go,sndnvaps/go,suncycheng/go,ganboing/go-esx,golang/go,Jordanzuo/go,odeke-em/go,gdey/go,josharian/go,malvira/go,akutz/go,vanloswang/go,Samurais/go,malvira/go,polyverse-security/go,CAFxX/go,kim-racktop/go,cyberroadie/go,mwhudson/go,odeke-em/go,deft-code/go,polyverse-security/go,vsekhar/elastic-go,kim-racktop/go,ImJasonH/go,kim-racktop/go,deft-code/go,goodlang/good,derekmarcotte/go,binarycrusader/go,vanloswang/go,vsekhar/elastic-go,sndnvaps/go,josharian/go,theif519/go,odeke-em/go,binarycrusader/go,odeke-em/go,CAFxX/go,deft-code/go,odeke-em/go,linux-on-ibm-z/go,fjballest/golang,odeke-em/go,derekmarcotte/go,derekmarcotte/go,momchil-velikov/go,ganboing/go-esx,akutz/go,suncycheng/go,theif519/go,roth1002/go,golang/go,CAFxX/go,binarycrusader/go,derekmarcotte/go,Jordanzuo/go,ImJasonH/go,vsekhar/elastic-go,roth1002/go,golang/go,linux-on-ibm-z/go,vsekhar/elastic-go,binarycrusader/go,binarycrusader/go,Jordanzuo/go,Endika/go,Samurais/go,josharian/go,ganboing/go-esx,malvira/go,fjballest/golang,Cofyc/go,polyverse-security/go,polyverse-security/go,malvira/go,Samurais/go,linux-on-ibm-z/go,goodlang/good,suncycheng/go,vsekhar/elastic-go,Cofyc/go,nawawi/go,CAFxX/go,theif519/go,ganboing/go-esx,josharian/go,gdey/go,sndnvaps/go,miolini/go,akutz/go,CAFxX/go,Samurais/go,goodlang/good,fjballest/golang,Cofyc/go,Cofyc/go,rachtsingh/gogojuice,golang/go,ImJasonH/go,goodlang/good,vsekhar/elastic-go,ImJasonH/go,nawawi/go,Endika/go,polyverse-security/go,goodlang/good,polyverse-security/go,cyberroadie/go,ganboing/go-esx,miolini/go,cyberroadie/go,momchil-velikov/go,miolini/go,sndnvaps/go,4ad/go,linux-on-ibm-z/go,rachtsingh/gogojuice,deft-code/go,theif519/go,cloudflare/go,kim-racktop/go,vsekhar/elastic-go,momchil-velikov/go,CAFxX/go,cyberroadie/go,ImJasonH/go,mwhudson/go,Cofyc/go,Samurais/go,gdey/go,malvira/go,rachtsingh/gogojuice,polyverse-security/go,mwhudson/go,fjballest/golang,gdey/go,codestation/go,akutz/go,momchil-velikov/go,vanloswang/go