Rename `abra context` to `abra server`

abra

@@ -165,7 +165,7 @@ sub_help() {
 	echo "  --version     Show program version"
 	echo ""
 	echo "Commands:"
-	echo "  context     manage remote swarm contexts"
+	echo "  server      manage remote host"
 	echo "  cp          copy files to a container"
 	echo "  deploy      let 'em rip"
 	echo "  logs        tail logs from a deployed service"
@@ -391,23 +391,24 @@ sub_cp() {
 
 ###### Subcommand `context`
 
-sub_context_help() {
-	echo "Usage: $PROGRAM_NAME [global opts] context <subcommand> [sub opts]"
+sub_server_help() {
+	echo "Usage: $PROGRAM_NAME [global opts] server <subcommand> [sub opts]"
 	echo ""
 	echo "Subcommands:"
-	echo "    create HOST [USER] [PORT]             set up remote Docker context"
+	echo "    add HOST [USER] [PORT]                set up remote Docker context"
+	echo "    rm HOST"
 	echo "    use HOST                              activate remote Docker context"
 	echo "    init HOST                             activate swarm mode"
 }
 
-sub_context_init() {
+sub_server_init() {
 	load_context
 
 	docker swarm init || true
 	docker network create --driver=overlay proxy --scope swarm || true
 }
 
-sub_context_create() {
+sub_server_add() {
 	HOST="$1"
 	USERNAME="$2"
 	PORT="$3"
@@ -424,15 +425,20 @@ sub_context_create() {
 		--docker "host=ssh://$USERNAME$HOST$PORT"
 }
 
-sub_context_use() {
+sub_server_rm() {
+	HOST="$1"
+	docker context rm "$HOST"
+}
+
+sub_server_use() {
 	docker context use "$1"
 }
 
-sub_context() {
+sub_server() {
 	SUBCOMMAND2=$1
 	shift
 	# shellcheck disable=SC2068
-	parse_subcommand "$SUBCOMMAND2" "context" $@
+	parse_subcommand "$SUBCOMMAND2" "server" $@
 }