sl-feeds: adding --insecure and --ca flags
sl-feeds: adding --insecure and --ca flags

pulling straight from https://forfuncsake.github.io/post/2017/08/trust-extra-ca-cert-in-go-app/
Thanks @forfuncsake

Fixes #18

Signed-off-by: Vincent Batts <d01a4772f0cffd3f005a7d7f01c59cd104c7a5fe@hashbangbash.com>

vbatts/sl-feeds