Add circle.yml and move testrpc command to top-level repo

circle.yml

@@ -0,0 +1,23 @@
+machine:
+  node:
+    version: 6.5.0
+  environment:
+      CONTRACTS_COMMIT_HASH: '78fe8dd'
+      PATH: "${PATH}:${HOME}/${CIRCLE_PROJECT_REPONAME}/node_modules/.bin"
+
+dependencies:
+  override:
+    - yarn
+  cache_directories:
+    - ~/.cache/yarn
+
+test:
+  override:
+    - wget https://s3.amazonaws.com/testrpc-shapshots/${CONTRACTS_COMMIT_HASH}.zip
+    - unzip ${CONTRACTS_COMMIT_HASH}.zip -d testrpc_snapshot
+    - npm run testrpc -- --db testrpc_snapshot:
+        background: true
+    - lerna run test:coverage
+    - lerna run report_test_coverage
+    - if [ $CIRCLE_BRANCH = "master" ]; then lerna run test:umd; fi
+    - lerna run lint

package.json

@@ -3,5 +3,14 @@
     "name": "0x.js",
     "workspaces": [
         "packages/*"
-    ]
+    ],
+    "scripts": {
+        "testrpc": "testrpc -p 8545 --networkId 50 -m \"${npm_package_config_mnemonic}\"",
+    },
+    "config": {
+      "mnemonic": "concert load couple harbor equip island argue ramp clarify fence smart topic"
+    },
+    "devDependencies": {
+        "lerna": "^2.5.1"
+    }
 }

packages/0x.js/package.json

@@ -24,7 +24,6 @@
     "test:coverage": "nyc npm run test --all",
     "report_test_coverage": "nyc report --reporter=text-lcov | coveralls",
     "update_contracts": "for i in ${npm_package_config_artifacts}; do copyfiles -u 4 ../contracts/build/contracts/$i.json ../0x.js/src/artifacts; done;",
-    "testrpc": "testrpc -p 8545 --networkId 50 -m \"${npm_package_config_mnemonic}\"",
     "docs:json": "typedoc --excludePrivate --excludeExternals --target ES5 --json docs/index.json .",
     "docs:generate": "typedoc --out docs .",
     "docs:open": "opn docs/index.html",
@@ -40,7 +39,6 @@
   },
   "config": {
     "artifacts": "TokenTransferProxy Exchange TokenRegistry Token EtherToken",
-    "mnemonic": "concert load couple harbor equip island argue ramp clarify fence smart topic"
   },
   "repository": {
     "type": "git",