Adds npm publish script.

.gitignore

@@ -1,3 +1,4 @@
 node_modules
 .nyc_output
 coverage.lcov
+coverage

.npmignore

@@ -0,0 +1,9 @@
+node_modules
+.nyc_output
+coverage.lcov
+coverage
+
+.eslintrc
+circle.yml
+scripts
+tests

scripts/release.js

@@ -0,0 +1,34 @@
+'use strict';
+
+/* eslint no-console: 0, no-sync: 0, no-process-exit: 0 */
+
+const execSync = require('child_process').execSync;
+const fs = require('fs');
+const packageJson = require('../package.json');
+
+const nextVersion = process.argv[process.argv.length - 1];
+const nextRef = `v${nextVersion}`;
+const semverRegex = /[0-9]+\.[0-9]+\.[0-9](-.+)?/ig;
+
+function validateSemver (version) {
+  if (!semverRegex.test(version)) {
+    console.error(`Version ${version} is not valid! It must be a valid semver string`);
+    process.exit(1);
+  }
+}
+
+validateSemver(nextVersion);
+
+console.log(`Current Version: ${packageJson.version}`);
+console.log(`Next Version: ${nextVersion}`);
+
+packageJson.version = nextVersion;
+
+fs.writeFileSync('package.json', `${JSON.stringify(packageJson, null, 2)}\n`, 'utf8');
+
+execSync(`git commit -am 'Release Version: ${nextRef}'`);
+execSync(`git tag ${nextRef}`);
+execSync('git push origin master');
+execSync(`git push origin ${nextRef}`);
+
+execSync('npm publish', { stdio: [0, 1, 2] });