Drop support for Node.js <8.x

Author: LinusU

.travis.yml

@@ -4,7 +4,6 @@ install:
 node_js:
   - '10'
   - '8'
-  - '6'
 addons:
   apt:
     sources:

CHANGELOG.md

@@ -38,7 +38,7 @@ canvas.createJPEGStream() // new
 ```
 
 ### Breaking
- * Drop support for Node.js <6.x
+ * Drop support for Node.js <8.x
  * Remove sync stream functions (bc53059). Note that most streams are still
    synchronous (run in the main thread); this change just removed `syncPNGStream`
    and `syncJPEGStream`.

Readme.md

@@ -33,7 +33,7 @@ $ npm install canvas
 
 By default, binaries for macOS, Linux and Windows will be downloaded. If you want to build from source, use `npm install --build-from-source`.
 
-Currently the minimum version of node required is __6.0.0__
+Currently the minimum version of node required is __8.0.0__
 
 ### Compiling
 

appveyor.yml

@@ -1,7 +1,7 @@
 version: 0.0.{build}
 environment:
   matrix:
-    - nodejs_version: "6"
+    - nodejs_version: "8"
 image:
   - Visual Studio 2013
   - Visual Studio 2015

package.json

@@ -49,7 +49,7 @@
     "standard": "^12.0.1"
   },
   "engines": {
-    "node": ">=6"
+    "node": ">=8"
   },
   "license": "MIT"
 }