fix(Downgrade sharp): Downgrade sharp so that we can install it on al…

…pine distros.

examples/example.js

@@ -3,26 +3,6 @@ import ImageCache from '../dist/index';
 
 const imagecache = new ImageCache(presets);
 
-imagecache.render('./in.png', 'test_sc', (err, image) => {
-  if (err) {
-    console.log('Failed to process image out_s_test_sc.png.');
-    console.log(err);
-
-    return;
-  }
-
-  image.toFile('out_s_test_sc.png', (saveErr, info) => {
-    if (saveErr) {
-      console.log('Failed to save image out_s_test_sc.png.');
-      console.log(err);
-
-      return;
-    }
-
-    console.log(`Saved image out_s_test_sc.png with width ${info.width} and height ${info.height}.`);
-  });
-});
-
 imagecache.render('./in.png', 's_crop_tiny', (err, image) => {
   if (err) {
     console.log('Failed to process image out_s_crop_tiny.png.');

examples/presets.js

@@ -1,27 +1,4 @@
 module.exports = {
-  test_sc: {
-    presetname: 'test_sc',
-    actions: [
-      {
-        action: 'scale_and_crop',
-        config: {
-          width: 152,
-          height: 152,
-        },
-      },
-      {
-        action: 'define_canvas',
-        config: {
-          color: '#333333',
-          width: 400,
-          height: 400,
-        },
-      },
-      {
-        action: 'blur',
-      },
-    ],
-  },
   s_crop_tiny: {
     presetname: 's_crop_tiny',
     actions: [

package.json

@@ -46,9 +46,9 @@
     ]
   },
   "dependencies": {
-    "async": "^2.4.1",
-    "sharp": "^0.18.1",
-    "string": "^3.3.3"
+    "async": "2.4.1",
+    "sharp": "0.16.2",
+    "string": "3.3.3"
   },
   "devDependencies": {
     "@semantic-release/condition-codeship": "^1.1.0",