diff --git a/.travis.yml b/.travis.yml
index dcc81c2..eb86cae 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,61 +1,29 @@
 language: node_js
+os:
+ - linux
 node_js:
-  - "6.5"
-  - "6.4"
-  - "6.3"
-  - "6.2"
-  - "6.1"
-  - "6.0"
+  - "11.0"
+  - "10.13"
+  - "9.11"
+  - "8.12"
+  - "7.10"
+  - "6.14"
   - "5.12"
-  - "5.11"
-  - "5.10"
-  - "5.9"
-  - "5.8"
-  - "5.7"
-  - "5.6"
-  - "5.5"
-  - "5.4"
-  - "5.3"
-  - "5.2"
-  - "5.1"
-  - "5.0"
-  - "4.5"
-  - "4.4"
-  - "4.3"
-  - "4.2"
-  - "4.1"
-  - "4.0"
+  - "4.9"
   - "iojs-v3.3"
-  - "iojs-v3.2"
-  - "iojs-v3.1"
-  - "iojs-v3.0"
   - "iojs-v2.5"
-  - "iojs-v2.4"
-  - "iojs-v2.3"
-  - "iojs-v2.2"
-  - "iojs-v2.1"
-  - "iojs-v2.0"
   - "iojs-v1.8"
-  - "iojs-v1.7"
-  - "iojs-v1.6"
-  - "iojs-v1.5"
-  - "iojs-v1.4"
-  - "iojs-v1.3"
-  - "iojs-v1.2"
-  - "iojs-v1.1"
-  - "iojs-v1.0"
   - "0.12"
-  - "0.11"
   - "0.10"
-  - "0.9"
   - "0.8"
-  - "0.6"
-  - "0.4"
 before_install:
-  - 'if [ "${TRAVIS_NODE_VERSION}" != "0.9" ]; then case "$(npm --version)" in 1.*) npm install -g npm@1.4.28 ;; 2.*) npm install -g npm@2 ;; esac ; fi'
-  - 'if [ "${TRAVIS_NODE_VERSION}" != "0.6" ] && [ "${TRAVIS_NODE_VERSION}" != "0.9" ]; then npm install -g npm; fi'
+  - 'case "${TRAVIS_NODE_VERSION}" in 0.*) export NPM_CONFIG_STRICT_SSL=false ;; esac'
+  - 'nvm install-latest-npm'
+install:
+  - 'if [ "${TRAVIS_NODE_VERSION}" = "0.6" ] || [ "${TRAVIS_NODE_VERSION}" = "0.9" ]; then nvm install --latest-npm 0.8 && npm install && nvm use "${TRAVIS_NODE_VERSION}"; else npm install; fi;'
 script:
-  - 'if [ -n "${LINT-}" ]; then npm run lint ; fi'
+  - 'if [ -n "${PRETEST-}" ]; then npm run pretest ; fi'
+  - 'if [ -n "${POSTTEST-}" ]; then npm run posttest ; fi'
   - 'if [ -n "${COVERAGE-}" ]; then npm run coverage ; fi'
   - 'if [ -n "${TEST-}" ]; then npm run tests-only ; fi'
 sudo: false
@@ -64,50 +32,212 @@ env:
 matrix:
   fast_finish: true
   include:
-    - node_js: "node"
-      env: LINT=true
+    - node_js: "lts/*"
+      env: PRETEST=true
     - node_js: "4"
       env: COVERAGE=true
-  allow_failures:
+    - node_js: "10.12"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.11"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.10"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.9"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.10"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.9"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.11"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.10"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.9"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.9"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.13"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.12"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.11"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.10"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.9"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.5"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "6.4"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "6.3"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "6.2"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "6.1"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "6.0"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "5.11"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "5.10"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "5.9"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "5.8"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "5.7"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "5.6"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "5.5"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "5.4"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "5.3"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "5.2"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "5.1"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "5.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "4.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "4.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "4.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "4.5"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "4.4"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "4.3"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "4.2"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "4.1"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "4.0"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v3.2"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v3.1"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v3.0"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v2.4"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v2.3"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v2.2"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v2.1"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v2.0"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v1.7"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v1.6"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v1.5"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v1.4"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v1.3"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v1.2"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v1.1"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "iojs-v1.0"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "0.11"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "0.9"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "0.6"
+      env: TEST=true ALLOW_FAILURE=true
     - node_js: "0.4"
+      env: TEST=true ALLOW_FAILURE=true
+  allow_failures:
+    - os: osx
+    - env: TEST=true ALLOW_FAILURE=true