fix(travis):remake install scripts

.travis.yml

@@ -9,9 +9,10 @@ branches:
 install:
   - npm i -g lerna
   - npm i -g yarn
-  - lerna bootstrap
+  - yarn global add ts-node
+  - yarn install
 script:
-  - yarn clean && lerna link
+  - yarn bootstrap
   - yarn build
   - yarn test:src
   - yarn dist

tsconfig.json

@@ -1,12 +1,12 @@
 {
   "files": [],
   "references": [
-    { "path": "packages/harmony-core" },
-    { "path": "packages/harmony-account" },
-    { "path": "packages/harmony-contract" },
-    { "path": "packages/harmony-crypto" },
-    { "path": "packages/harmony-utils" },
-    { "path": "packages/harmony-network" },
-    { "path": "packages/harmony-transaction" }
+    {"path": "packages/harmony-core"},
+    {"path": "packages/harmony-account"},
+    {"path": "packages/harmony-contract"},
+    {"path": "packages/harmony-crypto"},
+    {"path": "packages/harmony-utils"},
+    {"path": "packages/harmony-network"},
+    {"path": "packages/harmony-transaction"}
   ]
 }