chore: use package.json files instead of .npmignore

.npmignore

@@ -1,77 +0,0 @@
-# Created by .ignore support plugin (hsz.mobi)
-### Node template
-# Logs
-logs
-*.log
-npm-debug.log*
-
-# Runtime data
-pids
-*.pid
-*.seed
-
-# Directory for instrumented libs generated by jscoverage/JSCover
-lib-cov
-
-# Coverage directory used by tools like istanbul
-coverage
-
-# Compiled binary addons (http://nodejs.org/api/addons.html)
-build/Release
-
-# Dependency directory
-node_modules
-
-/.codeclimate.yml
-/.gitignore
-/.gitattributes
-/.npmignore
-/.travis.yml
-/.eslintignore
-/.eslintrc
-
-# Build System files
-/tslint.json
-/rollup-uglify.conf.js
-/rollup.conf.js
-/protractor.config.js
-/systemjs.config.js
-
-# Typescript source files
-*.ts
-!*.d.ts
-*.js.map
-!/bundles/*.js.map
-!*.metadata.json
-tsconfig.json
-tsconfig-build.json
-
-
-# Editor specific
-.idea
-.vscode
-
-# test cases
-karma-test-shim.js
-karma.conf.js
-test
-_test-output
-
-# other stuffs
-.github
-DEVELOPER.md
-.editorconfig
-
-# project specific
-demo
-grunt
-favicon.png
-Gruntfile.js
-index.html
-.jshintrc
-styles
-.bowerrc
-_config.yml
-vendor
-build
-scripts

package.json

@@ -31,5 +31,9 @@
     "transform:compress": "myth src/font-awesome-animation.css build/$npm_package_name.min.css --sourcemap --compress",
     "version": "npm run build",
     "postversion": "git push && git push --tags"
-  }
+  },
+  "files": [
+    "css",
+    "sass"
+  ]
 }