TypeScript 2.7.1 support

• TypeScript version 2.7.1 support
• Fixed some CSS bugs due to PostCSS plugin change

lit-html 0.9.0 support

• lit-html version 0.9.0 support
• Organize PostCSS plugins

Release of basic Custom Elements

Basic support:

• oo-button
• oo-modal
• oo-offer
• oo-sign-in
• oo-sign-out
• oo-profile
• oo-ask
• oo-project
• oo-project-summary
• oo-project-messages
• oo-message-form
• oo-connect-stripe
• oo-pay
• oo-projects
• oo-profile-editor
• oo-notification
• oo-notification-center
• oo-nav
• oo-footer
• oo-version
• oo-empty
• oo-delete-account

And, these also contains some small elements on which they depend.

Change license

Changed the license from MIT to Apache-2.0

Development started

Building a project with

• TypeScript
• TSLint rule by xo
• Rollup
• Mocha+Expect.js and Karma