install-aws-server: Add code for transferring an SSH key.
install-aws-server: Add code for transferring an SSH key.

For quick iteration, sometimes you want a server to have an SSH key
(e.g. a GitHub deploy key for your fork).

shubhamdhama/zulip,andersk/zulip,andersk/zulip,Galexrt/zulip,hackerkid/zulip,shubhamdhama/zulip,zulip/zulip,punchagan/zulip,hackerkid/zulip,tommyip/zulip,rht/zulip,showell/zulip,synicalsyntax/zulip,andersk/zulip,eeshangarg/zulip,shubhamdhama/zulip,mahim97/zulip,rht/zulip,brainwane/zulip,dhcrzf/zulip,zulip/zulip,brainwane/zulip,mahim97/zulip,hackerkid/zulip,tommyip/zulip,mahim97/zulip,kou/zulip,brockwhittaker/zulip,rishig/zulip,andersk/zulip,andersk/zulip,dhcrzf/zulip,synicalsyntax/zulip,punchagan/zulip,rht/zulip,mahim97/zulip,dhcrzf/zulip,jackrzhang/zulip,hackerkid/zulip,synicalsyntax/zulip,brockwhittaker/zulip,brainwane/zulip,dhcrzf/zulip,jackrzhang/zulip,rishig/zulip,Galexrt/zulip,Galexrt/zulip,tommyip/zulip,kou/zulip,Galexrt/zulip,tommyip/zulip,showell/zulip,rishig/zulip,rishig/zulip,showell/zulip,timabbott/zulip,kou/zulip,eeshangarg/zulip,brainwane/zulip,andersk/zulip,brainwane/zulip,kou/zulip,timabbott/zulip,kou/zulip,kou/zulip,tommyip/zulip,punchagan/zulip,showell/zulip,kou/zulip,rishig/zulip,eeshangarg/zulip,dhcrzf/zulip,rishig/zulip,Galexrt/zulip,timabbott/zulip,brainwane/zulip,timabbott/zulip,tommyip/zulip,punchagan/zulip,zulip/zulip,hackerkid/zulip,synicalsyntax/zulip,punchagan/zulip,brockwhittaker/zulip,jackrzhang/zulip,timabbott/zulip,showell/zulip,jackrzhang/zulip,timabbott/zulip,tommyip/zulip,Galexrt/zulip,rht/zulip,zulip/zulip,brockwhittaker/zulip,dhcrzf/zulip,rht/zulip,eeshangarg/zulip,eeshangarg/zulip,rht/zulip,dhcrzf/zulip,punchagan/zulip,rishig/zulip,hackerkid/zulip,Galexrt/zulip,eeshangarg/zulip,zulip/zulip,mahim97/zulip,rht/zulip,jackrzhang/zulip,andersk/zulip,mahim97/zulip,hackerkid/zulip,synicalsyntax/zulip,zulip/zulip,showell/zulip,punchagan/zulip,brockwhittaker/zulip,zulip/zulip,synicalsyntax/zulip,brockwhittaker/zulip,synicalsyntax/zulip,shubhamdhama/zulip,timabbott/zulip,jackrzhang/zulip,shubhamdhama/zulip,brainwane/zulip,eeshangarg/zulip,shubhamdhama/zulip,shubhamdhama/zulip,jackrzhang/zulip,showell/zulip