add blockchain install scripts

lib/plugins/common/json-rpc.js

@@ -23,18 +23,27 @@ function fetch (account, method, params) {
     return r.data.result
   })
   .catch(err => {
-    console.log(err.response.data.error)
+    console.log(err.message)
+    try {
+      console.log(err.response.data.error)
+    } catch (__) {}
     throw err
   })
 }
 
+function split (str) {
+  const i = str.indexOf('=')
+  if (i === -1) return []
+  return [str.slice(0, i), str.slice(i + 1)]
+}
+
 function parseConf (confPath) {
   const conf = fs.readFileSync(confPath)
-  const lines = conf.toString().split('\n', 2)
+  const lines = conf.toString().split('\n')
 
   const res = {}
   for (let i = 0; i < lines.length; i++) {
-    const keyVal = lines[i].split('=')
+    const keyVal = split(lines[i])
 
     // skip when value is empty
     if (!keyVal[1]) continue