rkt: Send credentials only over secure channel
rkt: Send credentials only over secure channel

Also check for insecureSkipVerify flag to avoid certificate checks in
TLS connections, so we can use self-signed certificates for testing
purposes.

il9ue/rkt,adfernandes/rkt,MabinGo/rkt,Shashwatsh/rkt,sinfomicien/rkt,alexhersh/rkt,krnowak/rkt,jasonchaffee/rkt,markllama/rkt,dalanlan/rkt,s-urbaniak/rkt,tmrts/rkt,krnowak/rkt,squeed/rkt,joshix/rkt,tv42/rkt,shobhit85/rkt,xnox/rkt,coreos/rkt,crawford/rkt,jonboulle/rkt,MattDees/rkt,jakon89/rkt,akshaykarle/rkt,iaguis/rkt,jzelinskie/rkt,tixxdz/rkt,bsmr-go/rkt,alban/rkt,Wilybald/rkt,yifan-gu/rkt,squaremo/rkt,s-urbaniak/rkt,lucasallan/rkt,rkt/rkt,clearlinux/rkt,joshix/rkt,markllama/rkt,akshaykarle/rkt,luebken/rkt,xnox/rkt,liugenping/rkt,cab105/rkt,nhlfr/rkt,sinfomicien/rkt,smarvin/rkt,monstermunchkin/rkt,xnox/rkt,smarvin/rkt,blixtra/rkt,iankronquist/rkt,dgonyeo/rkt,intelsdi-x/rkt,jonboulle/rkt,jjlakis/rkt,marineam/rkt,sinfomicien/rkt,marineam/rkt,kinvolk/rkt,lucasallan/rkt,chrisseto/rkt,jonboulle/rkt,rot26/rkt,liugenping/rkt,mike1729/rkt,akshaykarle/rkt,alban/rkt,tixxdz/rkt,dgonyeo/rkt,lee212/rkt,euank/rkt,shtouff/rkt,il9ue/rkt,jakon89/rkt,iaguis/rkt,alexhersh/rkt,wparad/rkt,jasonchaffee/rkt,ChengTiesheng/rkt,intfrr/rkt,matthaias/rkt,jasonchaffee/rkt,squeed/rkt,yifan-gu/rkt,shtouff/rkt,Shashwatsh/rkt,endocode/rkt,maquanyi/rkt,Wilybald/rkt,tmrts/rkt,clearlinux/rkt,lee212/rkt,rot26/rkt,endocode/rkt,liubq919/rkt,coreos/rkt,Yhgenomics/rkt,mattthias/pkg-rkt,klizhentas/rkt,jjlakis/rkt,monstermunchkin/rkt,tv42/rkt,kbrwn/rkt,Wilybald/rkt,rot26/rkt,yifan-gu/rocket,mattthias/pkg-rkt,squeed/rkt,intelsdi-x/rkt,kbrwn/rkt,luebken/rkt,sgotti/rkt,adfernandes/rkt,michelangelo13/rkt,dgonyeo/rkt,kinvolk/rkt,tmrts/rkt,yifan-gu/rocket,endocode/rkt,rhvgoyal/rkt,kinvolk/rkt,mike1729/rkt,shobhit85/rkt,mike1729/rkt,sgotti/rkt,klizhentas/rkt,blixtra/rkt,adfernandes/rkt,intelsdi-x/rkt,ChengTiesheng/rkt,nhlfr/rkt,alexhersh/rkt,alban/rkt,jzelinskie/rkt,markllama/rkt,maquanyi/rkt,linki/rkt,wparad/rkt,marineam/rkt,MattDees/rkt,dalanlan/rkt,michelangelo13/rkt,luebken/rkt,intfrr/rkt,yifan-gu/rkt,crawford/rkt,rkt/rkt,tixxdz/rkt,iankronquist/rkt,linki/rkt,sstabellini/rkt,ChengTiesheng/rkt,ybubnov/rkt,lucasallan/rkt,matthaias/rkt,liugenping/rkt,euank/rkt,chrisseto/rkt,mjg59/rkt,clearlinux/rkt,dalanlan/rkt,sgotti/rkt,achanda/rkt,blixtra/rkt,jzelinskie/rkt,shtouff/rkt,rhvgoyal/rkt,intfrr/rkt,MabinGo/rkt,matthaias/rkt,monstermunchkin/rkt,euank/rkt,crawford/rkt,iankronquist/rkt,s-urbaniak/rkt,achanda/rkt,MattDees/rkt,Yhgenomics/rkt,iaguis/rkt,krnowak/rkt,squaremo/rkt,jjlakis/rkt,liubq919/rkt,lee212/rkt,ybubnov/rkt,mjg59/rkt,shobhit85/rkt,cab105/rkt,joshix/rkt,linki/rkt,lucasallan/rkt,nhlfr/rkt,wparad/rkt,fdserr/rkt,Wilybald/rkt,ybubnov/rkt,chrisseto/rkt,il9ue/rkt,maquanyi/rkt,rhvgoyal/rkt,yifan-gu/rocket,kinvolk/rkt,michelangelo13/rkt,smarvin/rkt,sstabellini/rkt,sstabellini/rkt,mjg59/rkt,squaremo/rkt,MabinGo/rkt,fdserr/rkt,rkt/rkt,klizhentas/rkt,kbrwn/rkt,mattthias/pkg-rkt,jakon89/rkt,Yhgenomics/rkt,tv42/rkt,bsmr-go/rkt,achanda/rkt,cab105/rkt,Shashwatsh/rkt,coreos/rkt,liubq919/rkt,rkt/rkt,joshix/rkt,bsmr-go/rkt,fdserr/rkt