Remove outdated and insecure binaries

See #87

package.json

@@ -4,22 +4,7 @@
 	"description": "gifsicle wrapper that makes it seamlessly available as a local dependency",
 	"license": "MIT",
 	"repository": "imagemin/gifsicle-bin",
-	"author": {
-		"name": "Kevin Martensson",
-		"email": "[email protected]",
-		"url": "github.com/kevva"
-	},
-	"maintainers": [
-		{
-			"name": "Sindre Sorhus",
-			"email": "[email protected]",
-			"url": "sindresorhus.com"
-		},
-		{
-			"name": "Shinnosuke Watanabe",
-			"url": "github.com/shinnn"
-		}
-	],
+	"funding": "https://github.com/imagemin/gisicle-bin?sponsor=1",
 	"bin": "cli.js",
 	"engines": {
 		"node": ">=6"
@@ -51,10 +36,10 @@
 		"logalot": "^2.0.0"
 	},
 	"devDependencies": {
-		"ava": "*",
+		"ava": "^1.4.1",
 		"bin-check": "^4.0.1",
 		"compare-size": "^3.0.0",
 		"tempy": "^0.2.1",
-		"xo": "*"
+		"xo": "^0.18.0"
 	}
 }

test/test.js

@@ -9,7 +9,7 @@ const binBuild = require('bin-build');
 const compareSize = require('compare-size');
 const m = require('..');
 
-test('rebuild the gifsicle binaries', async t => {
+test.serial('rebuild the gifsicle binaries', async t => {
 	// Skip the test on Windows
 	if (process.platform === 'win32') {
 		t.pass();
@@ -31,11 +31,11 @@ test('rebuild the gifsicle binaries', async t => {
 	t.true(fs.existsSync(path.join(tmp, 'gifsicle')));
 });
 
-test('verify binary', async t => {
+test.serial('verify binary', async t => {
 	t.true(await binCheck(m, ['--version']));
 });
 
-test('minify a gif', async t => {
+test.serial('minify a gif', async t => {
 	const tmp = tempy.directory();
 	const src = path.join(__dirname, 'fixtures/test.gif');
 	const dest = path.join(tmp, 'test.gif');