0.19.0

• New: Make datepicker to be editable by user input
• New: Add CSS class to days outside of month
• New: Add ability to filter dates by predicate
• Refactor and improve test coverage of Day component
• Calendar refactor, remove DateUtil
• Refactor date input selection by keyboard
• More cleanups and refactors
• Adding code coverage tool
  -Improve readme by specifying js highlight
• Add JSCS moment immutability rule
  -Update plugins