got httpclient working, spoke heartbeat is working

capsulflask/schema_migrations/09_up_introduce_hosts.sql

@@ -7,7 +7,7 @@ CREATE TABLE hosts (
   token              TEXT NOT NULL
 );
 
-INSERT INTO hosts (id, token) VALUES ('baikal', 'changeme');
+INSERT INTO hosts (id, https_url, token) VALUES ('baikal', 'http://localhost:5000', 'changeme');
 
 ALTER TABLE vms 
 ADD COLUMN host TEXT REFERENCES hosts(id) ON DELETE RESTRICT DEFAULT 'baikal';
@@ -16,7 +16,7 @@ CREATE TABLE operations (
   id                 SERIAL PRIMARY KEY ,
   email              TEXT REFERENCES accounts(email) ON DELETE RESTRICT,
   created            TIMESTAMP NOT NULL DEFAULT NOW(),
-  payload            TEXT NOT NULL,
+  payload            TEXT NOT NULL
 );
 
 CREATE TABLE host_operation (