Update Travis CI to use standard test script.

.travis.yml

@@ -7,16 +7,16 @@ env:
     - IPFS_REUSEPORT=false
 
 go:
-    - 1.8
-    - 1.9
+    - 1.8.x
+    - 1.9.x
 
 install: true
 
-script:
-  - ulimit -n 2048
+before_install:
   - make deps
-  - go vet
-  - go test ./...
+
+script:
+  - bash <(curl -s https://raw.githubusercontent.com/ipfs/ci-helpers/master/travis-ci/run-standard-tests.sh)
 
 cache:
     directories:

codecov.yml

@@ -0,0 +1,3 @@
+coverage:
+  range: "50...100"
+comment: off