[Tests] up to node v9.3, v8.9, v6.12; use `nvm install-latest…

…-npm`; pin included builds to LTS

.jscs.json

@@ -158,14 +158,14 @@
 
 	"requireImportAlphabetized": false,
 
-    "requireSpaceBeforeObjectValues": true,
-    "requireSpaceBeforeDestructuredValues": true,
+	"requireSpaceBeforeObjectValues": true,
+	"requireSpaceBeforeDestructuredValues": true,
 
 	"disallowSpacesInsideTemplateStringPlaceholders": true,
 
-    "disallowArrayDestructuringReturn": false,
+	"disallowArrayDestructuringReturn": false,
 
-    "requireNewlineBeforeSingleStatementsInIf": false,
+	"requireNewlineBeforeSingleStatementsInIf": false,
 
 	"disallowUnusedVariables": true,
 

.travis.yml

@@ -2,9 +2,10 @@ language: node_js
 os:
  - linux
 node_js:
-  - "8.4"
+  - "9.3"
+  - "8.9"
   - "7.10"
-  - "6.11"
+  - "6.12"
   - "5.12"
   - "4.8"
   - "iojs-v3.3"
@@ -14,10 +15,9 @@ node_js:
   - "0.10"
   - "0.8"
 before_install:
-  - 'if [ "${TRAVIS_NODE_VERSION}" = "0.6" ]; then npm install -g npm@1.3 ; elif [ "${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" ] && [ "${TRAVIS_NODE_VERSION}" != "0.9" ]; then if [ "${TRAVIS_NODE_VERSION%${TRAVIS_NODE_VERSION#[0-9]}}" = "0" ] || [ "${TRAVIS_NODE_VERSION:0:4}" = "iojs" ]; then npm install -g npm@4.5 ; else npm install -g npm; fi; fi'
+  - 'nvm install-latest-npm'
 install:
-  - 'if [ "${TRAVIS_NODE_VERSION}" = "0.6" ]; then nvm install 0.8 && npm install -g npm@1.3 && npm install -g npm@1.4.28 && npm install -g npm@2 && npm install && nvm use "${TRAVIS_NODE_VERSION}"; else npm install; fi;'
+  - 'if [ "${TRAVIS_NODE_VERSION}" = "0.6" ] || [ "${TRAVIS_NODE_VERSION}" = "0.9" ]; then nvm install --latest-npm 0.8 && npm install && nvm use "${TRAVIS_NODE_VERSION}"; else npm install; fi;'
 script:
   - 'if [ -n "${PRETEST-}" ]; then npm run pretest ; fi'
   - 'if [ -n "${POSTTEST-}" ]; then npm run posttest ; fi'
@@ -29,12 +29,28 @@ env:
 matrix:
   fast_finish: true
   include:
-    - node_js: "node"
+    - node_js: "lts/*"
       env: PRETEST=true
-    - node_js: "node"
+    - node_js: "lts/*"
       env: POSTTEST=true
     - node_js: "4"
       env: COVERAGE=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: "8.8"
+      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"
@@ -63,6 +79,8 @@ matrix:
       env: TEST=true ALLOW_FAILURE=true
     - node_js: "7.0"
       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"