README

##Requirements

• The application contains two pages: / and /admin.
• The root page displays the current dollar-ruble exchange rate, which is known to application.
• The app periodically updates rate from any selected available source (CBR-website, a main page http://www.rbc.ru, etc) using a background script.
• The rate updates on all currently opened root pages when it updates inside the application.
• The form is located on the /admin page. It contains field for input a number, field for input a date-time and a submit button.
• Submitted number becomes a forced rate until the entered date-time, i.e. the real rate is ignored until that time, and the root pages display the forced rate instead of it.
• The /admin page 'remembers' last input and displays it on the page load.
• Forced rate updates on all currently opened root pages when you submit it. All root pages start to display the real rate when the forced rate expires.
• The form contains reasonable validations.
• The appearance of the application must be tidy within a reasonable (eg, on Twitter Bootstrap).
• Any client-side JS-framework would be a plus.
• The app must work correctly in the latest versions of Firefox and Chrome.
• The code must be covered by the tests.
• Everything you need to run the application locally should be formed into the Procfile for Foreman.